DNMG 150612 Chip Breaker BM Grade FM2553 / DNMG 443 BM #FMCarbide

DNMG 150612 / DNMG 443, chip breaker BM, grade FM2553 — negative 55° rhombic turning insert.

1/2" inscribed circle, 1/4" 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.

Specifications

• Insert designation (ISO): DNMG 150612
• Insert designation (inch): DNMG 443
• Insert shape: 55° rhombic (D)
• Clearance angle: 0° — negative (N)
• Tolerance class: M
• Insert type: G — with hole, chipbreaker both sides
• Inscribed circle (I.C.): 1/2" (12.7 mm)
• Thickness: 1/4" (6.35 mm)
• Corner radius: 3/64" (1.19 mm)
• Chip breaker: BM
• Grade: FM2553
• Coating: CVD (Al₂O₃)
• ISO application range: P20–P35 · M10–M30
• Cutting speed, non-alloy steel: 490–1150 SFM (150–350 m/min)
• Cutting speed, low-alloy steel: 300–980 SFM (90–300 m/min)
• Cutting speed, high-alloy steel: 230–820 SFM (70–250 m/min)
• Cutting speed, ferritic & martensitic stainless: 390–750 SFM (120–230 m/min)
• Cutting speed, austenitic stainless: 260–660 SFM (80–200 m/min)
• Cutting speed, titanium & super-alloys: 110–260 SFM (35–80 m/min)

TURNING KNOW-HOW

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01 / SELECTION

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