Silver and deming high speed steel fractional 1/2 inch reduced shank drill bits are constructed of M7 high speed steel for high resistance to abrasion during tough drilling applications. 3-flatted shank design provides better chuck grip and reduces slippage. Ideal for use in keyless chucks. All silver and deming bits feature a 1/2 inch reduced shank that fits all 1/2 inch drills. Standard 118° point for use in wood, metal and plastic.