Drill Bit 5/16hd Co135
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- Cobalt drills are designed to cut through extremely hard metals, including stainless steel.
- No center punch needed: Sutherland 135° Quick Cut Points are self-centering and penetrate faster with less pressure...will not "walk" or "wander" at the starting surface.
- Extremely heat resistant, must be used and operated in power units that have a RPM speed of 1,500 or more for maximum efficiency.
- Aerospace NAS 907-J specifications.
|Shank Size:||5/16 in|