Bit is constructed of M-2 high-speed steel for the excellent combination of strength, heat resistance and wear resistance Black oxide coating resists corrosion 135 deg split point ensures a true start and eliminates bit walking heavy duty black oxide coated high speed steel jobber length drill bit is constructed of M-2 high speed steel for the best combination of strength, heat resistance and wear resistance. 135-degree split point ensures a true start and eliminates bit walking.
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