CNMA 190612 Grade FM2533 / CNMA 643 #FMCarbide

CNMA 190612 Grade FM2533 / CNMA 643 #FMCarbide

Turning Insert
$18.56 each
10 inserts per box
Grade
Chip Breaker
Item #
Quantity
- +

CNMA 190612 / CNMA 643, grade FM2533 — negative 80° rhombic turning insert.

3/4" inscribed circle, 1/4" 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.

Specifications

  • Insert designation (ISO): CNMA 190612
  • Insert designation (inch): CNMA 643
  • Insert shape: 80° rhombic (C)
  • Clearance angle: 0° — negative (N)
  • Tolerance class: M
  • Insert type: A — with hole, no chipbreaker
  • Inscribed circle (I.C.): 3/4" (19.05 mm)
  • Thickness: 1/4" (6.35 mm)
  • Corner radius: 3/64" (1.19 mm)
  • Grade: FM2533
  • Coating: CVD
  • ISO application range: P05–P20 · K15–K35
  • Cutting speed, non-alloy steel: 560–1480 SFM (170–450 m/min)
  • Cutting speed, low-alloy steel: 590–1250 SFM (180–380 m/min)
  • Cutting speed, high-alloy steel: 330–1080 SFM (100–330 m/min)
  • Cutting speed, grey cast iron: 390–980 SFM (120–300 m/min)
  • Cutting speed, nodular cast iron: 390–920 SFM (120–280 m/min)

Tool holders that accept this insert

67 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 3/4" inscribed circle, 1/4" thick. Pick by the shank your turret takes.

RMC square-shank toolholders — made in the USA

1" shank MCFNL 16-6D · MCFNR 16-6D · MCGNL 16-6D · MCGNR 16-6D · MCKNL 16-6D · MCKNR 16-6D · MCLNL 16-6D · MCLNR 16-6D · MCMNN 16-6D · MCRNL 16-6D · MCRNR 16-6D · MCYNN 16-6D
1-1/4" shank MCFNL 20-6D · MCFNL 20-6E · MCFNR 20-6D · MCGNL 20-6D · MCGNR 20-6D · MCKNL 20-6D · MCKNL 20-6E · MCKNR 20-6D · MCKNR 20-6E · MCLNL 20-6D · MCLNL 20-6E · MCLNR 20-6D · MCLNR 20-6E · MCMNN 20-6D · MCMNN 20-6E · MCRNL 20-6D · MCRNL 20-6E · MCRNR 20-6D · MCRNR 20-6E · MCYNN 20-6D
1-1/2" shank MCFNL 24-6E · MCFNR 24-6D · MCFNR 24-6E · MCGNL 24-6D · MCGNL 24-6E · MCGNR 24-6D · MCGNR 24-6E · MCKNL 24-6D · MCKNL 24-6E · MCKNR 24-6D · MCKNR 24-6E · MCLNL 24-6D · MCLNL 24-6E · MCLNR 24-6D · MCLNR 24-6E · MCMNN 24-6D · MCMNN 24-6E · MCRNL 24-6D · MCRNL 24-6E · MCRNR 24-6D · MCRNR 24-6E · MCYNN 24-6D · MCYNN 24-6E
1" x 1-1/4" shank MCGNL 85-6D · MCGNR 85-6D · MCLNL 85-6D · MCLNR 85-6D
1" x 1-1/2" shank MCKNL 86-6E · MCKNR 86-6E · MCLNL 86-6E · MCLNR 86-6E · MCRNL 86-6D · MCRNL 86-6E · MCRNR 86-6D · MCRNR 86-6E

Boring bars and interchangeable heads. 26 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

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