Tool Bits, T-15 High Speed Steel, Individual Sizes

- 2-1/2" long T-15 HSS tool bits
T-15 is a tungsten type super high speed steel containing high vanadium for excellent abrasion resistance and cobalt for good red hardness. AISI T-15 is ideal for cutting difficult to machine materials where high frictional heat is present.

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.
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