{"title":"CNMG Turning Inserts","description":"\u003cp\u003eCNMG is the 80° diamond-shaped insert used on most CNC lathes. C is the 80° rhombic shape, N means 0° relief (a negative insert), M is the tolerance class, and G means a center hole with chip breakers on both sides, so each insert gives you four cutting corners.\u003c\/p\u003e\u003cp\u003eISO and ANSI codes name the same insert: CNMG 120404 is CNMG 431, 120408 is 432, and 120412 is 433. The last digits set the nose radius.\u003c\/p\u003e\u003cp\u003eNot sure which chip breaker or grade fits your material? Read our \u003ca href=\"\/blogs\/techtalks\/turning-insert-designation-explained\"\u003eturning insert code guide\u003c\/a\u003e or call us at (248) 310-9599.\u003c\/p\u003e","products":[{"product_id":"fm500197","title":"CNMG 120404 Chip Breaker BG Grade FM524 \/ CNMG 431 BG #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120404 \/ CNMG 431, chip breaker BG, grade FM524 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/64\" corner radius. The BG breaker is the medium machining geometry: 0.008–0.016 ipr (0.2–0.4 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM524 is a CVD grade — gray cast iron and very stable steel — the hardest substrate with CVD coating for extreme wear resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 431\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/64\" (0.4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BG — Steel — medium machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.016 ipr (0.2–0.4 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM524\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P01–P10 · K10–K25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 720–1570 SFM (220–480 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 720–1380 SFM (220–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 560–1380 SFM (170–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–1340 SFM (120–410 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM524 \/ BG \/ FM500197","offer_id":39770072875194,"sku":"FM500197","price":5.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120404_BF_ISO_FM_Carbide_Insert_f54afe21-3edd-4935-89bb-80923d7dbfd1.jpg?v=1621957583"},{"product_id":"fm200199","title":"CNMG 120404 Chip Breaker BG Grade FM2553 \/ CNMG 431 BG #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120404 \/ CNMG 431, chip breaker BG, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/64\" corner radius. The BG breaker is the medium machining geometry: 0.008–0.016 ipr (0.2–0.4 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 431\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/64\" (0.4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BG — Steel — medium machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.016 ipr (0.2–0.4 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BG \/ FM200199","offer_id":39770073366714,"sku":"FM200199","price":9.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120404_BF_ISO_FM_Carbide_Insert_3fcbd27a-f8a2-4816-a159-f93e940ac74d.jpg?v=1621957586"},{"product_id":"fm500428","title":"CNMG 120404 Chip Breaker BL Grade FM524 \/ CNMG 431 BL #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120404 \/ CNMG 431, chip breaker BL, grade FM524 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/64\" corner radius. The BL breaker is the semi-finishing geometry: 0.004–0.012 ipr (0.1–0.3 mm\/rev) at 0.04–0.12\" (1–3 mm) depth of cut. FM524 is a CVD grade — gray cast iron and very stable steel — the hardest substrate with CVD coating for extreme wear resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 431\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/64\" (0.4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BL — Steel — semi-finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.004–0.012 ipr (0.1–0.3 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.04–0.12\" (1–3 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM524\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P01–P10 · K10–K25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 720–1570 SFM (220–480 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 720–1380 SFM (220–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 560–1380 SFM (170–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–1340 SFM (120–410 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM524 \/ BL \/ FM500428","offer_id":39770073432250,"sku":"FM500428","price":5.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120404_BF_ISO_FM_Carbide_Insert_346d39e5-c56b-4c49-a7f9-4a94d03658ab.jpg?v=1621957587"},{"product_id":"fm200137","title":"CNMG 120404 Chip Breaker BL Grade FM2543 \/ CNMG 431 BL #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120404 \/ CNMG 431, chip breaker BL, grade FM2543 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/64\" corner radius. The BL breaker is the semi-finishing geometry: 0.004–0.012 ipr (0.1–0.3 mm\/rev) at 0.04–0.12\" (1–3 mm) depth of cut. FM2543 is a CVD grade — first-choice grade for general steel work — continuous through interrupted cuts across steel applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 431\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/64\" (0.4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BL — Steel — semi-finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.004–0.012 ipr (0.1–0.3 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.04–0.12\" (1–3 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2543\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P15–P30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 380–1150 SFM (110–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 200–980 SFM (60–300 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2543 \/ BL \/ FM200137","offer_id":39770073661626,"sku":"FM200137","price":8.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120404_BF_ISO_FM_Carbide_Insert_40a470b9-4d02-4194-88a5-f5fb617dfbec.jpg?v=1621957590"},{"product_id":"fm200237","title":"CNMG 120404 Chip Breaker BL Grade FM2553 \/ CNMG 431 BL #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120404 \/ CNMG 431, chip breaker BL, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/64\" corner radius. The BL breaker is the semi-finishing geometry: 0.004–0.012 ipr (0.1–0.3 mm\/rev) at 0.04–0.12\" (1–3 mm) depth of cut. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 431\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/64\" (0.4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BL — Steel — semi-finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.004–0.012 ipr (0.1–0.3 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.04–0.12\" (1–3 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BL \/ FM200237","offer_id":39770073923770,"sku":"FM200237","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120404_BF_ISO_FM_Carbide_Insert_2673e2d4-1623-4fe9-8295-0b048e95bf49.jpg?v=1621957591"},{"product_id":"fm200238","title":"CNMG 120404 Chip Breaker BM Grade FM2533 \/ CNMG 431 BM #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120404 \/ CNMG 431, chip breaker BM, grade FM2533 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/64\" corner radius. FM2533 is a CVD grade — stable steel applications and nodular cast iron — a balance of wear resistance and chipping resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 431\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/64\" (0.4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2533\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P05–P20 · K15–K35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 560–1480 SFM (170–450 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 330–1080 SFM (100–330 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 390–980 SFM (120–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–920 SFM (120–280 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2533 \/ BM \/ FM200238","offer_id":39770074972346,"sku":"FM200238","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120404_BF_ISO_FM_Carbide_Insert_bef5d7fa-dfbd-421e-acbe-96ff3a98749b.jpg?v=1621957594"},{"product_id":"fm200239","title":"CNMG 120404 Chip Breaker BM Grade FM2543 \/ CNMG 431 BM #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120404 \/ CNMG 431, chip breaker BM, grade FM2543 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/64\" corner radius. FM2543 is a CVD grade — first-choice grade for general steel work — continuous through interrupted cuts across steel applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 431\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/64\" (0.4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2543\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P15–P30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 380–1150 SFM (110–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 200–980 SFM (60–300 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2543 \/ BM \/ FM200239","offer_id":39770075005114,"sku":"FM200239","price":8.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120404_BF_ISO_FM_Carbide_Insert_3df7c855-8c4a-46e8-93d2-3096fb3707bb.jpg?v=1621957595"},{"product_id":"fm200240","title":"CNMG 120404 Chip Breaker BM Grade FM2553 \/ CNMG 431 BM #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120404 \/ CNMG 431, chip breaker BM, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/64\" corner radius. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 431\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/64\" (0.4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BM \/ FM200240","offer_id":39770075070650,"sku":"FM200240","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120404_BF_ISO_FM_Carbide_Insert_7a283fbd-6227-4bcd-b395-8f741fdfef4a.jpg?v=1621957596"},{"product_id":"fm200387","title":"CNMG 120408 Chip Breaker BC Grade FM2533 \/ CNMG 432 BC #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BC, grade FM2533 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BC breaker is the medium roughing \u0026amp; cast iron geometry: 0.008–0.020 ipr (0.2–0.5 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM2533 is a CVD grade — stable steel applications and nodular cast iron — a balance of wear resistance and chipping resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BC — Steel — medium roughing \u0026amp; cast iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.020 ipr (0.2–0.5 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2533\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P05–P20 · K15–K35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 560–1480 SFM (170–450 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 330–1080 SFM (100–330 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 390–980 SFM (120–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–920 SFM (120–280 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2533 \/ BC \/ FM200387","offer_id":39770075103418,"sku":"FM200387","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_5b21e534-e257-419b-83c9-855906c994f6.jpg?v=1623450901"},{"product_id":"fm200155","title":"CNMG 120408  Chip Breaker BC Grade FM2543 \/ CNMG 432 BC #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BC, grade FM2543 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BC breaker is the medium roughing \u0026amp; cast iron geometry: 0.008–0.020 ipr (0.2–0.5 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM2543 is a CVD grade — first-choice grade for general steel work — continuous through interrupted cuts across steel applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BC — Steel — medium roughing \u0026amp; cast iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.020 ipr (0.2–0.5 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2543\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P15–P30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 380–1150 SFM (110–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 200–980 SFM (60–300 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2543 \/ BC \/ FM200155","offer_id":39770075365562,"sku":"FM200155","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_44577708-3bbe-45f8-9217-2d1889f8f88a.jpg?v=1621957601"},{"product_id":"fm200388","title":"CNMG 120408 Chip Breaker  BC Grade FM2553 \/ CNMG 432 BC #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BC, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BC breaker is the medium roughing \u0026amp; cast iron geometry: 0.008–0.020 ipr (0.2–0.5 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BC — Steel — medium roughing \u0026amp; cast iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.020 ipr (0.2–0.5 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BC \/ FM200388","offer_id":39770075398330,"sku":"FM200388","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_3b7fa6c2-b9df-4ecf-b449-3059a61ff8e1.jpg?v=1621957602"},{"product_id":"fm500425","title":"CNMG 120408 Chip Breaker BF Grade  FM524 \/ CNMG 432 BF #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BF, grade FM524 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BF breaker is the finishing geometry: 0.002–0.010 ipr (0.05–0.25 mm\/rev) at 0.02–0.06\" (0.5–1.5 mm) depth of cut. FM524 is a CVD grade — gray cast iron and very stable steel — the hardest substrate with CVD coating for extreme wear resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BF — Steel — finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.002–0.010 ipr (0.05–0.25 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.02–0.06\" (0.5–1.5 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM524\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P01–P10 · K10–K25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 720–1570 SFM (220–480 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 720–1380 SFM (220–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 560–1380 SFM (170–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–1340 SFM (120–410 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM524 \/ BF \/ FM500425","offer_id":39770075496634,"sku":"FM500425","price":8.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_57602150-1f9d-445b-a705-560a735c2786.jpg?v=1621957603"},{"product_id":"fm200244","title":"CNMG 120408 Chip Breaker  BF Grade FM2533 \/ CNMG 432 BF #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BF, grade FM2533 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BF breaker is the finishing geometry: 0.002–0.010 ipr (0.05–0.25 mm\/rev) at 0.02–0.06\" (0.5–1.5 mm) depth of cut. FM2533 is a CVD grade — stable steel applications and nodular cast iron — a balance of wear resistance and chipping resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BF — Steel — finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.002–0.010 ipr (0.05–0.25 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.02–0.06\" (0.5–1.5 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2533\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P05–P20 · K15–K35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 560–1480 SFM (170–450 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 330–1080 SFM (100–330 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 390–980 SFM (120–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–920 SFM (120–280 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2533 \/ BF \/ FM200244","offer_id":39770075693242,"sku":"FM200244","price":9.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_caa23c01-1aa7-49c6-80ad-8f92f31d0603.jpg?v=1621957604"},{"product_id":"fm200480","title":"CNMG 120408 Chip Breaker  BF Grade FM2538 \/ CNMG 432 BF #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BF, grade FM2538 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BF breaker is the finishing geometry: 0.002–0.010 ipr (0.05–0.25 mm\/rev) at 0.02–0.06\" (0.5–1.5 mm) depth of cut. FM2538 is a CVD grade — balanced productivity for continuous cuts — high wear resistance with improved toughness.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BF — Steel — finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.002–0.010 ipr (0.05–0.25 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.02–0.06\" (0.5–1.5 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2538\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P10–P25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 560–1340 SFM (170–410 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 430–1180 SFM (130–360 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 260–1020 SFM (80–310 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2538 \/ BF \/ FM200480","offer_id":39770075726010,"sku":"FM200480","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_db4e287f-bdcf-44fd-877d-a8ff3d9b59db.jpg?v=1621957605"},{"product_id":"fm200245","title":"CNMG 120408 Chip Breaker BF Grade FM2543 \/ CNMG 432 BF #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BF, grade FM2543 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BF breaker is the finishing geometry: 0.002–0.010 ipr (0.05–0.25 mm\/rev) at 0.02–0.06\" (0.5–1.5 mm) depth of cut. FM2543 is a CVD grade — first-choice grade for general steel work — continuous through interrupted cuts across steel applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BF — Steel — finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.002–0.010 ipr (0.05–0.25 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.02–0.06\" (0.5–1.5 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2543\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P15–P30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 380–1150 SFM (110–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 200–980 SFM (60–300 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2543 \/ BF \/ FM200245","offer_id":39770075988154,"sku":"FM200245","price":8.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_591e8825-5243-4648-ad7e-43e82c7aa47e.jpg?v=1621957606"},{"product_id":"fm200246","title":"CNMG 120408 Chip Breaker BF Grade FM2553 \/ CNMG 432 BF #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BF, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BF breaker is the finishing geometry: 0.002–0.010 ipr (0.05–0.25 mm\/rev) at 0.02–0.06\" (0.5–1.5 mm) depth of cut. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BF — Steel — finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.002–0.010 ipr (0.05–0.25 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.02–0.06\" (0.5–1.5 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BF \/ FM200246","offer_id":39770076053690,"sku":"FM200246","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_1588eec7-3a31-4d58-b601-464cbd970013.jpg?v=1621957607"},{"product_id":"fm500161","title":"CNMG 120408 Chip Breaker BG Grade FM524 \/ CNMG 432 BG #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BG, grade FM524 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BG breaker is the medium machining geometry: 0.008–0.016 ipr (0.2–0.4 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM524 is a CVD grade — gray cast iron and very stable steel — the hardest substrate with CVD coating for extreme wear resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BG — Steel — medium machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.016 ipr (0.2–0.4 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM524\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P01–P10 · K10–K25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 720–1570 SFM (220–480 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 720–1380 SFM (220–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 560–1380 SFM (170–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–1340 SFM (120–410 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM524 \/ BG \/ FM500161","offer_id":39770076315834,"sku":"FM500161","price":5.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_a5a24d5e-d71d-4cd5-8fcb-f8d21e97e93a.jpg?v=1621957608"},{"product_id":"fm200162","title":"CNMG 120408 Chip Breaker BG Grade FM2533 \/ CNMG 432 BG #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BG, grade FM2533 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BG breaker is the medium machining geometry: 0.008–0.016 ipr (0.2–0.4 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM2533 is a CVD grade — stable steel applications and nodular cast iron — a balance of wear resistance and chipping resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BG — Steel — medium machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.016 ipr (0.2–0.4 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2533\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P05–P20 · K15–K35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 560–1480 SFM (170–450 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 330–1080 SFM (100–330 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 390–980 SFM (120–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–920 SFM (120–280 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2533 \/ BG \/ FM200162","offer_id":39770076381370,"sku":"FM200162","price":8.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert.jpg?v=1621957609"},{"product_id":"fm200476","title":"CNMG 120408 Chip Breaker  BG Grade FM2538 \/ CNMG 432 BG #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BG, grade FM2538 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BG breaker is the medium machining geometry: 0.008–0.016 ipr (0.2–0.4 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM2538 is a CVD grade — balanced productivity for continuous cuts — high wear resistance with improved toughness.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BG — Steel — medium machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.016 ipr (0.2–0.4 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2538\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P10–P25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 560–1340 SFM (170–410 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 430–1180 SFM (130–360 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 260–1020 SFM (80–310 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2538 \/ BG \/ FM200476","offer_id":39770076446906,"sku":"FM200476","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_86e7c4ce-0625-4da7-ab2e-2b41260ee50f.jpg?v=1621957610"},{"product_id":"fm200146","title":"CNMG 120408 Chip Breaker BG Grade FM2543 \/ CNMG 432 BG #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BG, grade FM2543 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BG breaker is the medium machining geometry: 0.008–0.016 ipr (0.2–0.4 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM2543 is a CVD grade — first-choice grade for general steel work — continuous through interrupted cuts across steel applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BG — Steel — medium machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.016 ipr (0.2–0.4 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2543\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P15–P30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 380–1150 SFM (110–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 200–980 SFM (60–300 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2543 \/ BG \/ FM200146","offer_id":39770076479674,"sku":"FM200146","price":9.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_c92b9835-4cc7-4ae2-b408-3415cba32cfe.jpg?v=1621957611"},{"product_id":"fm200163","title":"CNMG 120408 Chip Breaker BG Grade FM2553 \/ CNMG 432 BG  #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BG, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BG breaker is the medium machining geometry: 0.008–0.016 ipr (0.2–0.4 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BG — Steel — medium machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.016 ipr (0.2–0.4 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BG \/ FM200163","offer_id":39770076807354,"sku":"FM200163","price":8.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_da5dc644-070a-40f0-b8b7-7c12ae292835.jpg?v=1621957613"},{"product_id":"fm500200","title":"CNMG 120408 Chip Breaker BL Grade FM524 \/ CNMG 432 BL #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BL, grade FM524 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BL breaker is the semi-finishing geometry: 0.004–0.012 ipr (0.1–0.3 mm\/rev) at 0.04–0.12\" (1–3 mm) depth of cut. FM524 is a CVD grade — gray cast iron and very stable steel — the hardest substrate with CVD coating for extreme wear resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BL — Steel — semi-finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.004–0.012 ipr (0.1–0.3 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.04–0.12\" (1–3 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM524\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P01–P10 · K10–K25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 720–1570 SFM (220–480 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 720–1380 SFM (220–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 560–1380 SFM (170–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–1340 SFM (120–410 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM524 \/ BL \/ FM500200","offer_id":39770076872890,"sku":"FM500200","price":5.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_103f9c0c-d99c-4e9a-93fa-70c038061a20.jpg?v=1621957614"},{"product_id":"fm200201","title":"CNMG 120408 Chip Breaker BL Grade FM2533 \/ CNMG 432 BL #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BL, grade FM2533 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BL breaker is the semi-finishing geometry: 0.004–0.012 ipr (0.1–0.3 mm\/rev) at 0.04–0.12\" (1–3 mm) depth of cut. FM2533 is a CVD grade — stable steel applications and nodular cast iron — a balance of wear resistance and chipping resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BL — Steel — semi-finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.004–0.012 ipr (0.1–0.3 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.04–0.12\" (1–3 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2533\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P05–P20 · K15–K35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 560–1480 SFM (170–450 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 330–1080 SFM (100–330 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 390–980 SFM (120–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–920 SFM (120–280 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2533 \/ BL \/ FM200201","offer_id":39770077135034,"sku":"FM200201","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_7cad7ea8-f90a-4138-9252-34df1658b9fb.jpg?v=1621957615"},{"product_id":"fm200138","title":"CNMG 120408 Chip Breaker BL Grade FM2543 \/ CNMG 432 BL #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BL, grade FM2543 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BL breaker is the semi-finishing geometry: 0.004–0.012 ipr (0.1–0.3 mm\/rev) at 0.04–0.12\" (1–3 mm) depth of cut. FM2543 is a CVD grade — first-choice grade for general steel work — continuous through interrupted cuts across steel applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BL — Steel — semi-finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.004–0.012 ipr (0.1–0.3 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.04–0.12\" (1–3 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2543\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P15–P30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 380–1150 SFM (110–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 200–980 SFM (60–300 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2543 \/ BL \/ FM200138","offer_id":39770077495482,"sku":"FM200138","price":8.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_4479da85-c6a4-487e-b9a4-d68cce3deab0.jpg?v=1621957616"},{"product_id":"fm200202","title":"CNMG 120408 Chip Breaker BL Grade FM2553 \/ CNMG 432 BL #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BL, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BL breaker is the semi-finishing geometry: 0.004–0.012 ipr (0.1–0.3 mm\/rev) at 0.04–0.12\" (1–3 mm) depth of cut. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BL — Steel — semi-finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.004–0.012 ipr (0.1–0.3 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.04–0.12\" (1–3 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BL \/ FM200202","offer_id":39770077692090,"sku":"FM200202","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_eba3ebd6-b1fa-44e5-9bab-b054f656c59f.jpg?v=1621957617"},{"product_id":"fm200459","title":"CNMG 120408 Chip Breaker BMF Grade FM2553 \/ CNMG 432 BMF #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BMF, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BMF breaker is the finishing geometry: 0.003–0.012 ipr (0.07–0.3 mm\/rev) at 0.01–0.06\" (0.2–1.5 mm) depth of cut. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BMF — Stainless steel — finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.003–0.012 ipr (0.07–0.3 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.01–0.06\" (0.2–1.5 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BMF \/ FM200459","offer_id":39770077954234,"sku":"FM200459","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_55a17e3a-9c6c-4ac6-b600-ced14db1d598.jpg?v=1621957618"},{"product_id":"fm200503","title":"CNMG 120408 Chip Breaker BMM Grade FM2553 \/ CNMG 432 BMM #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BMM, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BMM breaker is the medium \u0026amp; low-carbon steel geometry: 0.008–0.014 ipr (0.2–0.35 mm\/rev) at 0.04–0.14\" (1–3.5 mm) depth of cut. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BMM — Stainless — medium \u0026amp; low-carbon steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.014 ipr (0.2–0.35 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.04–0.14\" (1–3.5 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BMM \/ FM200503","offer_id":39770077987002,"sku":"FM200503","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_939d0063-01e3-4048-9a9a-4c9db0820a1f.jpg?v=1621957619"},{"product_id":"fm200460","title":"CNMG 120408 Chip Breaker BMR Grade FM2553 \/ CNMG 432 BMR #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BMR, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BMR breaker is the roughing geometry: 0.012–0.022 ipr (0.3–0.6 mm\/rev) at 0.07–0.22\" (1.8–5.5 mm) depth of cut. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BMR — Stainless steel — roughing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.012–0.022 ipr (0.3–0.6 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.07–0.22\" (1.8–5.5 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BMR \/ FM200460","offer_id":39770078249146,"sku":"FM200460","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_5c597548-19d1-4657-8757-454ccde155f3.jpg?v=1621957620"},{"product_id":"fm500164","title":"CNMG 120408 Chip Breaker BM Grade FM524 \/ CNMG 432 BM #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BM, grade FM524 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. FM524 is a CVD grade — gray cast iron and very stable steel — the hardest substrate with CVD coating for extreme wear resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM524\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P01–P10 · K10–K25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 720–1570 SFM (220–480 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 720–1380 SFM (220–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 560–1380 SFM (170–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–1340 SFM (120–410 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM524 \/ BM \/ FM500164","offer_id":39770078281914,"sku":"FM500164","price":7.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_fefd6094-9baf-41b0-bac8-f797b6902656.jpg?v=1621957621"},{"product_id":"fm200165","title":"CNMG 120408 Chip Breaker BM Grade FM2533 \/ CNMG 432 BM #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BM, grade FM2533 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. FM2533 is a CVD grade — stable steel applications and nodular cast iron — a balance of wear resistance and chipping resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2533\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P05–P20 · K15–K35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 560–1480 SFM (170–450 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 330–1080 SFM (100–330 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 390–980 SFM (120–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–920 SFM (120–280 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2533 \/ BM \/ FM200165","offer_id":39770078544058,"sku":"FM200165","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_9560e4da-9887-40e4-918d-9b2c140f0600.jpg?v=1621957622"},{"product_id":"fm200475","title":"CNMG 120408 Chip Breaker BM Grade FM2538 \/ CNMG 432 BM #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BM, grade FM2538 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. FM2538 is a CVD grade — balanced productivity for continuous cuts — high wear resistance with improved toughness.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2538\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P10–P25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 560–1340 SFM (170–410 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 430–1180 SFM (130–360 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 260–1020 SFM (80–310 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2538 \/ BM \/ FM200475","offer_id":39770078576826,"sku":"FM200475","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_2e0c2a24-40a8-4283-b267-0f12bbfe44b5.jpg?v=1621957623"},{"product_id":"fm200166","title":"CNMG 120408 Chip Breaker BM Grade FM2543 \/ CNMG 432 BM #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BM, grade FM2543 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. FM2543 is a CVD grade — first-choice grade for general steel work — continuous through interrupted cuts across steel applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2543\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P15–P30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 380–1150 SFM (110–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 200–980 SFM (60–300 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2543 \/ BM \/ FM200166","offer_id":39770078609594,"sku":"FM200166","price":8.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_c6f96865-12cb-4fcf-93f9-c037b12408f0.jpg?v=1621957624"},{"product_id":"fm200167","title":"CNMG 120408 Chip Breaker BM Grade FM2553 \/ CNMG 432 BM #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BM, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BM \/ FM200167","offer_id":39770078904506,"sku":"FM200167","price":8.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_39b222b3-1dbb-48cc-90fd-b745db41acc8.jpg?v=1621957625"},{"product_id":"fm500168","title":"CNMG 120408 Chip Breaker BR Grade FM524 \/ CNMG 432 BR #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BR, grade FM524 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BR breaker is the roughing geometry: 0.012–0.024 ipr (0.3–0.6 mm\/rev) at 0.08–0.24\" (2–6 mm) depth of cut. FM524 is a CVD grade — gray cast iron and very stable steel — the hardest substrate with CVD coating for extreme wear resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BR — Steel — roughing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.012–0.024 ipr (0.3–0.6 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.08–0.24\" (2–6 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM524\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P01–P10 · K10–K25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 720–1570 SFM (220–480 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 720–1380 SFM (220–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 560–1380 SFM (170–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–1340 SFM (120–410 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM524 \/ BR \/ FM500168","offer_id":39770079166650,"sku":"FM500168","price":5.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_88ab94b0-3e32-4198-96eb-e70bc581c0ce.jpg?v=1621957627"},{"product_id":"fm200169","title":"CNMG 120408 Chip Breaker BR Grade FM2533 \/ CNMG 432 BR #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BR, grade FM2533 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BR breaker is the roughing geometry: 0.012–0.024 ipr (0.3–0.6 mm\/rev) at 0.08–0.24\" (2–6 mm) depth of cut. FM2533 is a CVD grade — stable steel applications and nodular cast iron — a balance of wear resistance and chipping resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BR — Steel — roughing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.012–0.024 ipr (0.3–0.6 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.08–0.24\" (2–6 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2533\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P05–P20 · K15–K35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 560–1480 SFM (170–450 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 330–1080 SFM (100–330 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 390–980 SFM (120–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–920 SFM (120–280 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2533 \/ BR \/ FM200169","offer_id":39770079363258,"sku":"FM200169","price":8.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_d588c379-fb4b-44cc-9c03-a9f32bee1b22.jpg?v=1621957627"},{"product_id":"fm200170","title":"CNMG 120408 Chip Breaker  BR Grade FM2543 \/ CNMG 432 BR #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BR, grade FM2543 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BR breaker is the roughing geometry: 0.012–0.024 ipr (0.3–0.6 mm\/rev) at 0.08–0.24\" (2–6 mm) depth of cut. FM2543 is a CVD grade — first-choice grade for general steel work — continuous through interrupted cuts across steel applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BR — Steel — roughing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.012–0.024 ipr (0.3–0.6 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.08–0.24\" (2–6 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2543\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P15–P30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 380–1150 SFM (110–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 200–980 SFM (60–300 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2543 \/ BR \/ FM200170","offer_id":39770079658170,"sku":"FM200170","price":8.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_9ca24bad-67c1-4e4a-bd7a-0e2f30454e1b.jpg?v=1621957629"},{"product_id":"fm200171","title":"CNMG 120408 Chip Breaker BR Grade FM2553 \/ CNMG 432 BR #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BR, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BR breaker is the roughing geometry: 0.012–0.024 ipr (0.3–0.6 mm\/rev) at 0.08–0.24\" (2–6 mm) depth of cut. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BR — Steel — roughing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.012–0.024 ipr (0.3–0.6 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.08–0.24\" (2–6 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BR \/ FM200171","offer_id":39770079690938,"sku":"FM200171","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120408_BC_ISO_FM_Carbide_Insert_6250e780-3ab2-4935-9715-a58229876de9.jpg?v=1621957630"},{"product_id":"fm200389","title":"CNMG 120412 Chip Breaker BC Grade FM2533 \/ CNMG 433 BC #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120412 \/ CNMG 433, chip breaker BC, grade FM2533 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 3\/64\" corner radius. The BC breaker is the medium roughing \u0026amp; cast iron geometry: 0.008–0.020 ipr (0.2–0.5 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM2533 is a CVD grade — stable steel applications and nodular cast iron — a balance of wear resistance and chipping resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120412\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 433\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 3\/64\" (1.19 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BC — Steel — medium roughing \u0026amp; cast iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.020 ipr (0.2–0.5 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2533\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P05–P20 · K15–K35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 560–1480 SFM (170–450 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 330–1080 SFM (100–330 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 390–980 SFM (120–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–920 SFM (120–280 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2533 \/ BC \/ FM200389","offer_id":39770079953082,"sku":"FM200389","price":8.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120412_BC_ISO_FM_Carbide_Insert_d9d11431-b86d-4a66-8441-70626223f370.jpg?v=1621957631"},{"product_id":"fm200159","title":"CNMG 120412 Chip Breaker BC Grade FM2543 \/ CNMG 433  BC #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120412 \/ CNMG 433, chip breaker BC, grade FM2543 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 3\/64\" corner radius. The BC breaker is the medium roughing \u0026amp; cast iron geometry: 0.008–0.020 ipr (0.2–0.5 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM2543 is a CVD grade — first-choice grade for general steel work — continuous through interrupted cuts across steel applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120412\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 433\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 3\/64\" (1.19 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BC — Steel — medium roughing \u0026amp; cast iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.020 ipr (0.2–0.5 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2543\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P15–P30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 380–1150 SFM (110–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 200–980 SFM (60–300 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2543 \/ BC \/ FM200159","offer_id":39770080018618,"sku":"FM200159","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120412_BC_ISO_FM_Carbide_Insert_fec03f5a-f19f-4b7a-9460-b03f6e09af22.jpg?v=1621957632"},{"product_id":"fm200390","title":"CNMG 120412 Chip Breaker BC Grade FM2553 \/ CNMG 433 BC #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120412 \/ CNMG 433, chip breaker BC, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 3\/64\" corner radius. The BC breaker is the medium roughing \u0026amp; cast iron geometry: 0.008–0.020 ipr (0.2–0.5 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120412\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 433\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 3\/64\" (1.19 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BC — Steel — medium roughing \u0026amp; cast iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.020 ipr (0.2–0.5 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BC \/ FM200390","offer_id":39770080051386,"sku":"FM200390","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120412_BC_ISO_FM_Carbide_Insert_33af6701-ac2a-455e-b647-8fa67abf7c71.jpg?v=1621957633"},{"product_id":"fm500203","title":"CNMG 120412 Chip Breaker BG Grade FM524 \/ CNMG 433 BG #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120412 \/ CNMG 433, chip breaker BG, grade FM524 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 3\/64\" corner radius. The BG breaker is the medium machining geometry: 0.008–0.016 ipr (0.2–0.4 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM524 is a CVD grade — gray cast iron and very stable steel — the hardest substrate with CVD coating for extreme wear resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120412\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 433\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 3\/64\" (1.19 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BG — Steel — medium machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.016 ipr (0.2–0.4 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM524\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P01–P10 · K10–K25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 720–1570 SFM (220–480 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 720–1380 SFM (220–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 560–1380 SFM (170–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–1340 SFM (120–410 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM524 \/ BG \/ FM500203","offer_id":39770080313530,"sku":"FM500203","price":5.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120412_BC_ISO_FM_Carbide_Insert_11789f6f-2830-421a-a9b3-65c4776c9f25.jpg?v=1621957634"},{"product_id":"fm200204","title":"CNMG 120412 Chip Breaker BG Grade FM2533 \/ CNMG 433 BG #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120412 \/ CNMG 433, chip breaker BG, grade FM2533 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 3\/64\" corner radius. The BG breaker is the medium machining geometry: 0.008–0.016 ipr (0.2–0.4 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM2533 is a CVD grade — stable steel applications and nodular cast iron — a balance of wear resistance and chipping resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120412\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 433\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 3\/64\" (1.19 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BG — Steel — medium machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.016 ipr (0.2–0.4 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2533\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P05–P20 · K15–K35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 560–1480 SFM (170–450 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 330–1080 SFM (100–330 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 390–980 SFM (120–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–920 SFM (120–280 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2533 \/ BG \/ FM200204","offer_id":39770080346298,"sku":"FM200204","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120412_BC_ISO_FM_Carbide_Insert_63ac67c8-bf77-4dd4-a734-ec557a358e9b.jpg?v=1621957635"},{"product_id":"fm200152","title":"CNMG 120412 Chip Breaker BG Grade FM2543 \/ CNMG 433 BG #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120412 \/ CNMG 433, chip breaker BG, grade FM2543 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 3\/64\" corner radius. The BG breaker is the medium machining geometry: 0.008–0.016 ipr (0.2–0.4 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM2543 is a CVD grade — first-choice grade for general steel work — continuous through interrupted cuts across steel applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120412\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 433\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 3\/64\" (1.19 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BG — Steel — medium machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.016 ipr (0.2–0.4 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2543\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P15–P30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 380–1150 SFM (110–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 200–980 SFM (60–300 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2543 \/ BG \/ FM200152","offer_id":39770080379066,"sku":"FM200152","price":7.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120412_BC_ISO_FM_Carbide_Insert_d27b4c28-4b17-4d86-b917-4f5ad506ca58.jpg?v=1621957636"},{"product_id":"fm200205","title":"CNMG 120412 Chip Breaker BG Grade FM2553 \/ CNMG 433 BG #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120412 \/ CNMG 433, chip breaker BG, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 3\/64\" corner radius. The BG breaker is the medium machining geometry: 0.008–0.016 ipr (0.2–0.4 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120412\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 433\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 3\/64\" (1.19 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BG — Steel — medium machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.016 ipr (0.2–0.4 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BG \/ FM200205","offer_id":39770080411834,"sku":"FM200205","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120412_BC_ISO_FM_Carbide_Insert_b28a1f7a-4bd5-4bbd-8f84-0c74d572bb51.jpg?v=1621957637"},{"product_id":"fm200462","title":"CNMG 120412 Chip Breaker BMR Grade FM2553 \/ CNMG 433 BMR #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120412 \/ CNMG 433, chip breaker BMR, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 3\/64\" corner radius. The BMR breaker is the roughing geometry: 0.012–0.022 ipr (0.3–0.6 mm\/rev) at 0.07–0.22\" (1.8–5.5 mm) depth of cut. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120412\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 433\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 3\/64\" (1.19 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BMR — Stainless steel — roughing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.012–0.022 ipr (0.3–0.6 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.07–0.22\" (1.8–5.5 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BMR \/ FM200462","offer_id":39770080673978,"sku":"FM200462","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120412_BC_ISO_FM_Carbide_Insert_1ae1d602-a880-4a74-a98a-f04eed361816.jpg?v=1621957638"},{"product_id":"fm500391","title":"CNMG 120412 Chip Breaker BM Grade FM524 \/ CNMG 433 BM #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120412 \/ CNMG 433, chip breaker BM, grade FM524 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 3\/64\" corner radius. FM524 is a CVD grade — gray cast iron and very stable steel — the hardest substrate with CVD coating for extreme wear resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120412\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 433\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 3\/64\" (1.19 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM524\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P01–P10 · K10–K25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 720–1570 SFM (220–480 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 720–1380 SFM (220–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 560–1380 SFM (170–420 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–1340 SFM (120–410 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM524 \/ BM \/ FM500391","offer_id":39770080706746,"sku":"FM500391","price":5.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120412_BC_ISO_FM_Carbide_Insert.jpg?v=1621957639"},{"product_id":"fm200252","title":"CNMG 120412 Chip Breaker BM Grade FM2533 \/ CNMG 433 BM #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120412 \/ CNMG 433, chip breaker BM, grade FM2533 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 3\/64\" corner radius. FM2533 is a CVD grade — stable steel applications and nodular cast iron — a balance of wear resistance and chipping resistance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120412\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 433\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 3\/64\" (1.19 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2533\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P05–P20 · K15–K35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 560–1480 SFM (170–450 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 330–1080 SFM (100–330 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 390–980 SFM (120–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 390–920 SFM (120–280 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2533 \/ BM \/ FM200252","offer_id":39770080968890,"sku":"FM200252","price":8.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120412_BC_ISO_FM_Carbide_Insert_1921684a-ae2c-486b-a0da-7b4d2ea526f6.jpg?v=1621957640"},{"product_id":"fm200253","title":"CNMG 120412 Chip Breaker BM Grade FM2543 \/ CNMG 433 BM #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120412 \/ CNMG 433, chip breaker BM, grade FM2543 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 3\/64\" corner radius. FM2543 is a CVD grade — first-choice grade for general steel work — continuous through interrupted cuts across steel applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120412\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 433\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 3\/64\" (1.19 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2543\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P15–P30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 590–1250 SFM (180–380 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 380–1150 SFM (110–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 200–980 SFM (60–300 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2543 \/ BM \/ FM200253","offer_id":39770081034426,"sku":"FM200253","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120412_BC_ISO_FM_Carbide_Insert_aaa859bf-06c1-4fef-bbb0-fb1e5af07780.jpg?v=1621957642"},{"product_id":"fm200254","title":"CNMG 120412 Chip Breaker BM Grade FM2553 \/ CNMG 433 BM #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120412 \/ CNMG 433, chip breaker BM, grade FM2553 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 3\/64\" corner radius. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120412\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 433\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 3\/64\" (1.19 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM2553\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e CVD (Al₂O₃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P20–P35 · M10–M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 490–1150 SFM (150–350 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 300–980 SFM (90–300 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–820 SFM (70–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 390–750 SFM (120–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 260–660 SFM (80–200 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–260 SFM (35–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM2553 \/ BM \/ FM200254","offer_id":39770081231034,"sku":"FM200254","price":5.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG_120412_BC_ISO_FM_Carbide_Insert_313a43d5-687b-457b-a632-3d09e9d98883.jpg?v=1621957643"},{"product_id":"fm200001","title":"CNMG 120408 Chip Breaker BG Grade FM324 \/ CNMG 432 BG #FMCarbide","description":"\u003cp\u003e\u003cstrong\u003eCNMG 120408 \/ CNMG 432, chip breaker BG, grade FM324 — negative 80° rhombic turning insert.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1\/2\" inscribed circle, 3\/16\" thick, 1\/32\" corner radius. The BG breaker is the medium machining geometry: 0.008–0.016 ipr (0.2–0.4 mm\/rev) at 0.06–0.16\" (1.5–4 mm) depth of cut. FM324 is a PVD grade — universal multi-purpose grade for mid and low cutting speeds — low-carbon and alloyed steel, stainless, cast iron, Inconel and titanium alloys.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (ISO):\u003c\/strong\u003e CNMG 120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert designation (inch):\u003c\/strong\u003e CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert shape:\u003c\/strong\u003e 80° rhombic (C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance angle:\u003c\/strong\u003e 0° — negative (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance class:\u003c\/strong\u003e M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert type:\u003c\/strong\u003e G — with hole, chipbreaker both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed circle (I.C.):\u003c\/strong\u003e 1\/2\" (12.7 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 3\/16\" (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner radius:\u003c\/strong\u003e 1\/32\" (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip breaker:\u003c\/strong\u003e BG — Steel — medium machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed rate range:\u003c\/strong\u003e 0.008–0.016 ipr (0.2–0.4 mm\/rev)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of cut range:\u003c\/strong\u003e 0.06–0.16\" (1.5–4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e FM324\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO application range:\u003c\/strong\u003e P10–P30 · M05–M25 · S05–S25 · H20–H40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, non-alloy steel:\u003c\/strong\u003e 390–820 SFM (120–250 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, low-alloy steel:\u003c\/strong\u003e 230–750 SFM (70–230 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, high-alloy steel:\u003c\/strong\u003e 230–590 SFM (70–180 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, ferritic \u0026amp; martensitic stainless:\u003c\/strong\u003e 200–590 SFM (60–180 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, austenitic stainless:\u003c\/strong\u003e 200–490 SFM (60–150 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, gray cast iron:\u003c\/strong\u003e 200–520 SFM (60–160 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, nodular cast iron:\u003c\/strong\u003e 200–390 SFM (60–120 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, titanium \u0026amp; super-alloys:\u003c\/strong\u003e 110–200 SFM (35–60 m\/min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting speed, hardened material:\u003c\/strong\u003e 130–260 SFM (40–80 m\/min)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTool holders that accept this insert\u003c\/h3\u003e\u003cp\u003e69 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 1\/2\" inscribed circle, 3\/16\" thick. Pick by the shank your turret takes.\u003c\/p\u003e\u003ch4\u003eRMC square-shank toolholders — made in the USA\u003c\/h4\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e5\/8\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcgnl-10-4b\"\u003eMCGNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-10-4b\"\u003eMCGNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-10-4b\"\u003eMCLNL 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-10-4b\"\u003eMCLNR 10-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-10-4b\"\u003eMCYNN 10-4B\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e3\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-12-4b\"\u003eMCFNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-12-4b\"\u003eMCFNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-12-4b\"\u003eMCGNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-12-4b\"\u003eMCGNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-12-4b\"\u003eMCKNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-12-4b\"\u003eMCKNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-12-4b\"\u003eMCLNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4b\"\u003eMCLNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-12-4c\"\u003eMCLNR 12-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-12-4b\"\u003eMCMNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-12-4b\"\u003eMCRNL 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-12-4b\"\u003eMCRNR 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4b\"\u003eMCYNN 12-4B\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-12-4d\"\u003eMCYNN 12-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-16-4d\"\u003eMCFNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-16-4d\"\u003eMCFNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-16-4d\"\u003eMCGNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-16-4d\"\u003eMCGNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-16-4d\"\u003eMCKNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-16-4d\"\u003eMCKNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4c\"\u003eMCLNL 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-16-4d\"\u003eMCLNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4c\"\u003eMCLNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-16-4d\"\u003eMCLNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-16-4d\"\u003eMCMNN 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-16-4d\"\u003eMCRNL 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4c\"\u003eMCRNR 16-4C\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-16-4d\"\u003eMCRNR 16-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-16-4d\"\u003eMCYNN 16-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnr-20-4e\"\u003eMCFNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-20-4d\"\u003eMCGNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4d\"\u003eMCGNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-20-4e\"\u003eMCGNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-20-4d\"\u003eMCKNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-20-4d\"\u003eMCKNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4d\"\u003eMCLNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-20-4e\"\u003eMCLNL 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4d\"\u003eMCLNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-20-4e\"\u003eMCLNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4d\"\u003eMCMNN 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-20-4e\"\u003eMCMNN 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-20-4d\"\u003eMCRNL 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4d\"\u003eMCRNR 20-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-20-4e\"\u003eMCRNR 20-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-20-4d\"\u003eMCYNN 20-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1-1\/2\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mclnl-24-4d\"\u003eMCLNL 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-24-4e\"\u003eMCLNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4d\"\u003eMCLNR 24-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-24-4e\"\u003eMCLNR 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-24-4e\"\u003eMCMNN 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-24-4e\"\u003eMCRNL 24-4E\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-24-4e\"\u003eMCRNR 24-4E\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;white-space:nowrap;padding:8px 14px 8px 0;border-bottom:1px solid #e1e3e3\"\u003e\u003cstrong\u003e1\" x 1-1\/4\" shank\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e1e3e3\"\u003e\n\u003ca href=\"\/products\/mcfnl-85-4d\"\u003eMCFNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcfnr-85-4d\"\u003eMCFNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnl-85-4d\"\u003eMCGNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcgnr-85-4d\"\u003eMCGNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknl-85-4d\"\u003eMCKNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcknr-85-4d\"\u003eMCKNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnl-85-4d\"\u003eMCLNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mclnr-85-4d\"\u003eMCLNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcmnn-85-4d\"\u003eMCMNN 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnl-85-4d\"\u003eMCRNL 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcrnr-85-4d\"\u003eMCRNR 85-4D\u003c\/a\u003e · \u003ca href=\"\/products\/mcynn-85-4d\"\u003eMCYNN 85-4D\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBoring bars and interchangeable heads.\u003c\/strong\u003e 66 more RMC tools take the same insert for internal turning. \u003ca href=\"\/collections\/rmc-boring-bars\"\u003eSee RMC boring bars →\u003c\/a\u003e\u003c\/p\u003e\u003csection id=\"fm-techtips\" class=\"fm-techtips\" aria-labelledby=\"fm-techtips-title\"\u003e\n  \u003cheader class=\"fm-techtips-header\"\u003e\n    \u003cdiv class=\"fm-techtips-logo\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/files\/TechTips_logo-01_V3.png?v=1637768030\" alt=\"TechTips\" width=\"5440\" height=\"2144\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"fm-techtips-eyebrow\"\u003eTURNING KNOW-HOW\u003c\/p\u003e\n      \u003ch2 id=\"fm-techtips-title\"\u003eGet more from your turning inserts.\u003c\/h2\u003e\n      \u003cp class=\"fm-techtips-intro\"\u003ePractical guides to choosing, understanding and using your inserts.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/header\u003e\n  \u003cdiv class=\"fm-techtips-grid\"\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/pages\/fm-carbide-grades-chip-breakers\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e01 \/ SELECTION\u003c\/span\u003e\n      \u003ch4\u003eGrades \u0026amp; chip breakers\u003c\/h4\u003e\n      \u003cp\u003eExplore the grade and chip-breaker selection chart for your turning operation.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the chart \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/turning-insert-designation-explained\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e02 \/ INSERT CODES\u003c\/span\u003e\n      \u003ch4\u003eKnow your insert\u003c\/h4\u003e\n      \u003cp\u003eUnderstand turning-insert designations and what the letters and numbers mean.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eRead the guide \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n    \u003ca class=\"fm-techtips-card\" href=\"https:\/\/fmcarbide.com\/blogs\/techtalks\/using-a-turning-formula-calculator\"\u003e\n      \u003cspan class=\"fm-techtips-topic\"\u003e03 \/ CUTTING PARAMETERS\u003c\/span\u003e\n      \u003ch4\u003eTurning calculations\u003c\/h4\u003e\n      \u003cp\u003eLearn how to use a turning formula calculator to work through the numbers.\u003c\/p\u003e\n      \u003cspan class=\"fm-techtips-cta\"\u003eExplore the formulas \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"fm-dispatch-notice\"\u003e\n\u003ch3\u003eAvailability and Shipping\u003c\/h3\u003e\n\u003cp\u003eFM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.\u003c\/p\u003e\n\u003cp\u003eEstimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"\/policies\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FM Carbide","offers":[{"title":"FM324 \/ BG \/ FM200001","offer_id":39770122191034,"sku":"FM200001","price":8.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/9796\/1325\/products\/CNMG120408-BG_ISO.jpg?v=1621958047"}],"url":"https:\/\/fmcarbide.com\/collections\/cnmg-turning-inserts.oembed?page=3","provider":"FM Carbide","version":"1.0","type":"link"}