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
135 degree split point ensures a true start and eliminates bit walking
IRWIN offers a complete line of Metal Twist Drill Bits, including Black Oxide, Turbo Point, Titanium Nitride, and Cobalt Drill Bits.. Black oxide coating for added corrosion resistance and added lubricity