SNMA 190616 Grade FM524 / SNMA 644 #FMCarbide

SNMA 190616 Grade FM524 / SNMA 644 #FMCarbide

Turning Insert
$10.22 per insert$102.20 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

SNMA 190616 / SNMA 644, grade FM524 — negative square turning insert.

3/4" inscribed circle, 1/4" thick, 1/16" corner radius. 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): SNMA 190616
  • Insert designation (inch): SNMA 644
  • Insert shape: square (S)
  • 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: 1/16" (1.59 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)

Tool holders that accept this insert

48 RMC toolholders in stock take this insert — square, 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 MSDNN 16-6D · MSKNR 16-6D · MSRNL 16-6D · MSRNL 16-6E · MSRNR 16-6D · MSRNR 16-6E · MSSNR 16-6D
1-1/4" shank MSDNN 20-6D · MSDNN 20-6E · MSKNL 20-6D · MSKNL 20-6E · MSKNR 20-6D · MSKNR 20-6E · MSRNL 20-6D · MSRNL 20-6E · MSRNR 20-6D · MSRNR 20-6E · MSSNL 20-6D · MSSNL 20-6E · MSSNR 20-6D · MSSNR 20-6E · SBL 20-5 · SBL 20-6 · SBR 20-5 · SBR 20-6
1-1/2" shank MSDNN 24-6D · MSDNN 24-6E · MSKNL 24-6D · MSKNL 24-6E · MSKNR 24-6D · MSKNR 24-6E · MSRNL 24-6D · MSRNL 24-6E · MSRNR 24-6D · MSRNR 24-6E · MSSNL 24-6D · MSSNL 24-6E · MSSNR 24-6D · MSSNR 24-6E · SBL 24-6 · SBR 24-6
1" x 1-1/4" shank MSDNN 85-6D · MSKNR 85-6D · MSKNR 85-6E · MSRNL 85-6D · MSRNR 85-6D
1" x 1-1/2" shank MSDNN 86-6E · MSKNR 86-6E

Boring bars and interchangeable heads. 14 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

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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