CNMG 160612 Chip Breaker BR Grade FM2543 / CNMG 543 BR #FM Carbide

CNMG 160612 Chip Breaker BR Grade FM2543 / CNMG 543 BR #FM Carbide

Turning Insert
$10.73 each
10 inserts per box
Grade
Chip Breaker
Item #
Quantity
- +

CNMG 160612 / CNMG 543, chip breaker BR, grade FM2543 — negative 80° rhombic turning insert.

5/8" inscribed circle, 1/4" thick, 3/64" 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.

Specifications

  • Insert designation (ISO): CNMG 160612
  • Insert designation (inch): CNMG 543
  • Insert shape: 80° rhombic (C)
  • Clearance angle: 0° — negative (N)
  • Tolerance class: M
  • Insert type: G — with hole, chipbreaker both sides
  • Inscribed circle (I.C.): 5/8" (15.88 mm)
  • Thickness: 1/4" (6.35 mm)
  • Corner radius: 3/64" (1.19 mm)
  • Chip breaker: BR — Steel — roughing
  • Feed rate range: 0.012–0.024 ipr (0.3–0.6 mm/rev)
  • Depth of cut range: 0.08–0.24" (2–6 mm)
  • Grade: FM2543
  • Coating: CVD
  • ISO application range: P15–P30
  • Cutting speed, non-alloy steel: 590–1250 SFM (180–380 m/min)
  • Cutting speed, low-alloy steel: 380–1150 SFM (110–350 m/min)
  • Cutting speed, high-alloy steel: 200–980 SFM (60–300 m/min)

Tool holders that accept this insert

60 RMC toolholders in stock take this insert — 80° rhombic, 0° — negative clearance, 5/8" inscribed circle, 1/4" thick. Pick by the shank your turret takes.

RMC square-shank toolholders — made in the USA

1" shank MCFNL 16-5D · MCFNR 16-5D · MCGNL 16-5C · MCGNL 16-5D · MCGNR 16-5C · MCGNR 16-5D · MCKNL 16-5C · MCKNL 16-5D · MCKNR 16-5C · MCKNR 16-5D · MCLNL 16-5C · MCLNL 16-5D · MCLNR 16-5C · MCLNR 16-5D · MCLNR 16-5E · MCMNN 16-5D · MCRNL 16-5D · MCRNR 16-5D · MCYNN 16-5D
1-1/4" shank MCFNL 20-5D · MCFNR 20-5D · MCGNL 20-5D · MCGNR 20-5D · MCKNL 20-5D · MCKNL 20-5E · MCKNR 20-5D · MCLNL 20-5D · MCLNL 20-5E · MCLNR 20-5D · MCLNR 20-5E · MCMNN 20-5D · MCRNL 20-5D · MCRNR 20-5D · MCYNN 20-5D
1-1/2" shank MCGNL 24-5D · MCGNL 24-5E · MCGNR 24-5E · MCKNL 24-5D · MCKNR 24-5E · MCLNL 24-5D · MCLNL 24-5E · MCLNR 24-5D · MCLNR 24-5E · MCMNN 24-5D · MCRNL 24-5E · MCRNR 24-5E
1" x 1-1/4" shank MCFNL 85-5D · MCFNR 85-5D · MCKNL 85-5D · MCKNR 85-5D · MCLNL 85-5D · MCLNR 85-5D · MCLNR 85-5E · MCRNL 85-5D · MCRNR 85-5D
1" x 1-1/2" shank MCFNR 86-5D · MCGNR 86-5D · MCKNL 86-5D · MCLNL 86-5E · MCLNR 86-5E

Boring bars and interchangeable heads. 40 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

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Read the guide 03 / CUTTING PARAMETERS

Turning calculations

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