VBMT 160404 Chip Breaker BF Grade FM324 / VBMT 331 BF Grade FM324 #FMCarbide

VBMT 160404 Chip Breaker BF Grade FM324 / VBMT 331 BF #FMCarbide

Turning Insert
$6.76 per insert$67.60 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

VBMT 160404 / VBMT 331, chip breaker BF, grade FM324 — positive 35° rhombic turning insert.

3/8" 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. FM324 is a PVD grade — universal multi-purpose grade for mid and low cutting speeds — low-carbon and alloyed steel, stainless, cast iron, Inconel and titanium alloys.

Specifications

  • Insert designation (ISO): VBMT 160404
  • Insert designation (inch): VBMT 331
  • Insert shape: 35° rhombic (V)
  • Clearance angle: 5° (B)
  • Tolerance class: M
  • Insert type: T — with hole, countersunk one side, chipbreaker one side
  • Inscribed circle (I.C.): 3/8" (9.52 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: FM324
  • Coating: PVD
  • ISO application range: P10–P30 · M05–M25 · S05–S25 · H20–H40
  • Cutting speed, non-alloy steel: 390–820 SFM (120–250 m/min)
  • Cutting speed, low-alloy steel: 230–750 SFM (70–230 m/min)
  • Cutting speed, high-alloy steel: 230–590 SFM (70–180 m/min)
  • Cutting speed, ferritic & martensitic stainless: 200–590 SFM (60–180 m/min)
  • Cutting speed, austenitic stainless: 200–490 SFM (60–150 m/min)
  • Cutting speed, gray cast iron: 200–520 SFM (60–160 m/min)
  • Cutting speed, nodular cast iron: 200–390 SFM (60–120 m/min)
  • Cutting speed, titanium & super-alloys: 110–200 SFM (35–60 m/min)
  • Cutting speed, hardened material: 130–260 SFM (40–80 m/min)

Tool holders that accept this insert

11 RMC toolholders in stock take this insert — 35° rhombic, 5° clearance, 3/8" inscribed circle, 3/16" thick. Pick by the shank your turret takes.

RMC square-shank toolholders — made in the USA

1/2" shank SVJBR 08-3C
5/8" shank SVJBR 10-3B
3/4" shank SVJBL 12-3B · SVJBR 12-3B · SVVBN 12-3B
1" shank SVJBL 16-3D · SVJBR 16-3C · SVJBR 16-3D · SVVBN 16-3D
1-1/4" shank SVJBL 20-3D · SVJBR 20-3D

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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