Irwin 90180 Drill Bit, 1/2 Reduced Shank, 6 Long, 1-1/4

Drill Bit, High Speed Steel, 1/2″ Reduced Shank, 6″ Long, 1-1/4″, in Tube IRWIN offers a complete line of Metal Twist Drill Bits, including Black Oxide, Turbo Point, Titanium Nitride, and Cobalt Drill Bits.. Bit is constructed of M-7 high speed steel for high resistance to abrasion during tough drilling applications. Bit is constructed of M-7 high speed steel for high resistance to abrasion during tough drilling applications. Three-flatted shank design provides better chuck grip and reduces slippage. Ideal for use in keyless chucks. All Silver & Deming bits are 6″ long and feature a 1/2″ reduced shank that fits all 1/2″ drills. Standard 118 degree point for use in wood, metal, and plastic.