Contractor grade drill bit manufactured from M1 High Speed Steel. For use in a wide range of materials in the iron and steel families such aluminum, iron, steel and other metal drilling. 135 degree split point tip for self-centering and reducing thrust. Compared to a conventional 118 degree tip, these drills wont go "walking" on you. 3-Flat shank creates an extra secure hold in your chuck. Black and gold surface treated
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