TNMA 160412 Chip Breaker BC Grade FM524 / TNMA 333 BC Grade FM524 # FMCarbide

TNMA 160412 Chip Breaker BC Grade FM524 / TNMA 333 BC # FMCarbide

Turning Insert
$7.36 per insert$73.60 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

TNMA 160412 / TNMA 333, chip breaker BC, grade FM524 — negative triangular turning insert.

3/8" inscribed circle, 3/16" thick, 3/64" corner radius. The BC breaker is the medium roughing & cast iron geometry: 0.008–0.020 ipr (0.2–0.5 mm/rev) at 0.06–0.16" (1.5–4 mm) depth of cut. FM524 is a CVD grade — gray cast iron and very stable steel — the hardest substrate with CVD coating for extreme wear resistance.

Specifications

  • Insert designation (ISO): TNMA 160412
  • Insert designation (inch): TNMA 333
  • Insert shape: triangular (T)
  • Clearance angle: 0° — negative (N)
  • Tolerance class: M
  • Insert type: A — with hole, no chipbreaker
  • Inscribed circle (I.C.): 3/8" (9.52 mm)
  • Thickness: 3/16" (4.76 mm)
  • Corner radius: 3/64" (1.19 mm)
  • Chip breaker: BC — Steel — medium roughing & cast iron
  • Feed rate range: 0.008–0.020 ipr (0.2–0.5 mm/rev)
  • Depth of cut range: 0.06–0.16" (1.5–4 mm)
  • Grade: FM524
  • Coating: CVD
  • ISO application range: P01–P10 · K10–K25
  • Cutting speed, non-alloy steel: 720–1570 SFM (220–480 m/min)
  • Cutting speed, low-alloy steel: 720–1380 SFM (220–420 m/min)
  • Cutting speed, gray cast iron: 560–1380 SFM (170–420 m/min)
  • Cutting speed, nodular cast iron: 390–1340 SFM (120–410 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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