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135° split point for fast penetration and accurate starting without a center punch. Cobalt drills require rigidly held positive feed drilling equipment. Manufactured from M42 High Speed Steel containing 8% Cobalt increasing hot hardness. The high hot hardness of cobalt permits speeds 30% over regular high-speed steel drills. Type 260-D. Made in USA.
Used to drill hard, tough metals, free machining stainless steel, titanium alloys, and certain abrasive plastics.