CCMT 120404 Chip Breaker BF Grade FM2553 / CCMT 431 BF #FMCarbide
CCMT 120404 Chip Breaker BF Grade FM2553 / CCMT 431 BF #FMCarbide
CCMT 120404 Chip Breaker BF Grade FM2553 / CCMT 431 BF #FMCarbide
CCMT 120404 Chip Breaker BF Grade FM2553 / CCMT 431 BF #FMCarbide

CCMT 120404 Chip Breaker BF Grade FM2553 / CCMT 431 BF #FMCarbide

Turning Insert
$9.16 per insert$91.60 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

CCMT 120404 / CCMT 431, chip breaker BF, grade FM2553 — positive 80° rhombic turning insert.

1/2" inscribed circle, 3/16" thick, 1/64" corner radius. The BF breaker is the Finishing geometry: 0.002–0.008 ipr (0.05–0.2 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.

Specifications

  • Insert designation (ISO): CCMT 120404
  • Insert designation (inch): CCMT 431
  • Insert shape: 80° rhombic (C)
  • Clearance angle: 7° (C)
  • Tolerance class: M
  • Insert type: T — with hole, countersunk one side, chipbreaker one side
  • Inscribed circle (I.C.): 1/2" (12.7 mm)
  • Thickness: 3/16" (4.76 mm)
  • Corner radius: 1/64" (0.4 mm)
  • Chip breaker: BF — Finishing
  • Feed rate range: 0.002–0.008 ipr (0.05–0.2 mm/rev)
  • Depth of cut range: 0.02–0.06" (0.5–1.5 mm)
  • 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)

Tool holders that accept this insert

7 RMC toolholders in stock take this insert — 80° rhombic, 7° clearance, 1/2" inscribed circle, 3/16" thick. Pick by the shank your turret takes.

RMC square-shank toolholders — made in the USA

3/4" shank SCLCL 12-4B · SCLCR 12-4B
1" shank SCLCL 16-4D · SCLCR 16-4D · SCMCN 16-4D
1-1/4" shank SCLCL 20-4D · SCLCR 20-4D

Boring bars and interchangeable heads. 7 more RMC tools take the same insert for internal turning. See RMC boring bars →

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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