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

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

Turning Insert
$7.61 per insert$76.10 per box of 10
Grade
Chip Breaker
Item #

Sold in boxes of 10 inserts. Prices are shown per insert. Minimum order: 10 inserts. Order in multiples of 10.

Quantity (inserts)
- +

10 inserts = 1 box · 20 inserts = 2 boxes

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

Get more from your turning inserts.

Practical guides to choosing, understanding and using your inserts.

01 / SELECTION

Grades & chip breakers

Explore the grade and chip-breaker selection chart for your turning operation.

Explore the chart 02 / INSERT CODES

Know your insert

Understand turning-insert designations and what the letters and numbers mean.

Read the guide 03 / CUTTING PARAMETERS

Turning calculations

Learn how to use a turning formula calculator to work through the numbers.

Explore the formulas

Availability and Shipping

FM Carbide maintains stock in the USA. If this item is not in stock, estimated time to ship is 14–21 calendar days.

Estimated 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.

See our Shipping Policy for details.

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