"IRWIN Silver & Deming Drill Bit — 9/16in. dia., Model# 91136"
"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. Bit is constructed of M-7 high speed steel for high resistance to abrasion during tough drilling applicationsThree-flatted shank design provides better chuck grip and reduces slippageIdeal for use in keyless chucksAll 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 plasticModel 91136"