Heavy-Duty 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 For general use in wood, metal, and plastic Black oxide coating resists corrosion 3/8" reduced shank fits all 3/8" drills 135 degree split point ensures a true start and eliminates bit walking
