Contractor grade drill bit manufactured from M1 High Speed Steel.
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.For use in a wide range of materials in the iron and steel families such aluminum, iron, steel and other metal drilling. Black and gold surface treated 9/64" HSS Contractor Drill Bit, 3-Flat Shank, Contractor Grade.