This IRWIN 1/2in. reduced shank Silver & Deming High Speed Steel Drill Bit is used to create large holes, heavy-duty metal drilling, automotive, body shop and metal fabrication. Includes (qty.) 1 Diameter (in.) 1 1/4 Shank Diameter (in.) 1/2 Length (in.) 6 Additional Product Specs * 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 6in. long and feature 1/2in. reduced shank that fits all 1/2in. drills. * Standard 118° point for use in wood, metal and plastic * Model 91180
