Tool Bit, 3/8" x 3", T-15 HSS, A R WarnerMade in United States

Tool Bit, 3/8" x 3", T-15 HSS, A R Warner
  • 3/8 square 3 inch long
  • T-15 High Speed Steel
  • American Made
Part Number: 1718
Weight: 0.13 lb

Price: $23.95

In stock
3/8" Square 3" Long HSS Tool Bit.

These are American-made tool bits made of T-15 high speed steel.

Chris Chris' Tips
T-15 is a grade of cobalt tool steel, which offers the highest hardness of most common high speed steel grades.

This heavy-duty, high-speed steel grade offers maximum cutting-edge endurance and wear resistance due to its high Vanadium content. The Cobalt content additionally lends it high temperature hardness and resistance to tempering.

Make sure you get the correct inserts for your indexable turning tools.

Our chart of indexable inserts shows which inserts to use with each of our indexable tools.We carry both imported tool bits made of M2 high speed steel and American-made tool bits made of T-15 high speed steel from the A. R. Warner Co.

AISI T-15 provides excellent wear resistance and good hot hardness.

Typical Chemistry
Carbon 1.60%
Manganese 0.30%
Chromium 4.00%
Vanadium 4.90%
Silicon 0.30%
Tungsten 12.00%
Cobalt 5.00%
Sulfur 0.06%

Typical Hardness
Rc 65-68


This product works with lathes with a 0.37 to 0.5 inch tool bit size including:

  •   Harbor Freight 44859 Central Machinery 8x12 Precision Mini Lathe
  •   Grizzly G0768 8x16 Benchtop Lathe
  • 3536 HiTorque 8.5x16 Bench Lathe
  •   SIEG C4 8.5x16 Bench Lathe
  •   SIEG SC4 8.5x16 Bench Lathe
  •   Travers Tools OT218410 OTMT 8x16 Bench Lathe
  • 3540 HiTorque 8.5x20 Bench Lathe
  • 3595 HiTorque 8.5x20 Deluxe Bench Lathe
  • 7500 HiTorque 8.5x20 Bench Lathe
  • 7550 HiTorque 8.5x20 Deluxe Bench Lathe
  •   BD-920N Jet 9x20 Lathe
  •   Grizzly G4000 9x19 Bench Lathe
  •   Harbor Freight 45861 Central Machinery 9x20 Bench Lathe
  •   Busy Bee Tools CX705 Craftex 10x21 Lathe Mill Combo
  •   Grizzly G0516 10x21 Lathe Mill Combo
  •   SIEG M6 10x21 Lathe Mill Combo