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Tool Bit, T-15 HSS, A R Warner, Individual Sizes

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$8.93 $13.95 In stock

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.

Use T-15 HSS for:

  • Interrupted Cuts
  • Underpowered Spindles
  • Gummy material like stainless, aluminum, and brass
  • Less than rigid setups

Overall, we consider T-15 HSS to be the best grade of readily available HSS for wear resistance, toughness, and hot hardness (significant improvement over imported M2 steel).

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Customer Reviews (4.6 / 5 · 5 reviews)

Riley F. ★★★★★

After struggling with chatter on some hardened tool steel, these T-15 bits cut through it like butter and held their edge way longer than my usual M2 bits. The cobalt content makes a real difference when things get hot.

Matthew C. ★★★★★

This T-15 bit handled some seriously tough stainless steel without any chattering or wear, and the cobalt content really seems to keep the edge cool under heavy cuts.

Carter ★★★★★

These T-15 bits chew through hardened steel like it's butter, the high vanadium content really makes a difference on abrasion. The red hardness from the cobalt means they hold their edge even when things get hot. Just what I needed for the tough jobs.