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.