- Precision ground from M35 high speed steel bars with 5% cobalt achieving a hardness of some 66-67 Rockwell.
- Intended for use on alloy and hardened steels, cast iron, titanium and many other really tough, hard-to-drill materials such as stainless steel.
- Sizes range from 1-10mm x 0.5mm.
Item in the box
1? set x 1~10X0.5 HSS-CO DRILL SET (FOR SUS)
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