General Purpose High Speed Steel Fractional 3/8" Reduced Shank Jobber Length Drill Bit 1/2" Size. 4-1/2" Twist Length. 6" Overall Length. Bulk. Bit is constructed of M-2 high speed steel for the best combination of strength, heat resistance, and wear resistance Standard 118 degree point for use in wood, metal, and plastic 3/8" reduced shank fits all 3/8" drills