WNMG 080412 Chip Breaker BR Grade FM2543 / WNMG 433 BR #FMCarbide

WNMG 080412 Chip Breaker BR Grade FM2543 / WNMG 433 BR #FMCarbide

Turning Insert
$5.78 each
10 inserts per box
Grade
Chip Breaker
Item #
Quantity
- +

WNMG 080412 / WNMG 433, chip breaker BR, grade FM2543 — negative 80° trigon turning insert.

1/2" inscribed circle, 3/16" 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): WNMG 080412
  • Insert designation (inch): WNMG 433
  • Insert shape: 80° trigon (W)
  • 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: 3/16" (4.76 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

18 RMC toolholders in stock take this insert — 80° trigon, 0° — negative clearance, 1/2" inscribed circle, 3/16" thick. Pick by the shank your turret takes.

RMC square-shank toolholders — made in the USA

5/8" shank MWLNL 10-4B · MWLNR 10-4B
3/4" shank MWLNL 12-4B · MWLNL 12-4D · MWLNR 12-4B · MWLNR 12-4D
1" shank MWLNL 16-4D · MWLNR 16-4D
1-1/4" shank MWLNL 20-4D · MWLNL 20-4E · MWLNR 20-4D · MWLNR 20-4E
1-1/2" shank MWLNL 24-4D · MWLNL 24-4E · MWLNR 24-4D · MWLNR 24-4E
1" x 1-1/4" shank MWLNL 85-4D · MWLNR 85-4D

Boring bars and interchangeable heads. 9 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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