Contractor grade drill bit manufactured from M1 High Speed Steel.
3-Flat shank creates an extra secure hold in your chuck. Compared to a conventional 118 degree tip, these drills wont go "walking" on you. 135 degree split point tip for self-centering and reducing thrust. Black and gold surface treated 13/32" HSS Contractor Drill Bit, 3-Flat Shank, Contractor Grade.