Irwin 67828 Jobber Drill Bit, 7/16 in Dia, 5-1/2 in OAL, Spiral Flute, 2-Flute, 7/16 in Dia Shank, Reduced Shank, HSS

M-2 high-speed steel with black oxide coating for strength, heat resistance and wear resistance in general drilling of wood, metal and plastic. The 3/8 in reduced shank fits all 3/8 in drills while split point ensures a true start and eliminates bit walking.