TRUSCO Step Drill for Hexagonal Socket Bolts M18 TSRMM18A 1 Piece

Catalog number: TSRMM18A Features: ●For hexagon socket bolts. Applications: ●Workpiece: Cast iron, carbon steel, alloy steel, tool steel, stainless steel, aluminum alloy. Specifications: ●Small diameter (mm): 20 ●Large diameter (mm): 29 ●Step length (mm): 45 ●Groove length (mm): 95 ●Total length (mm): 145 ●Shank diameter (mm): 12 Material/Finish: ●High speed steel (HSS) Caution: ●Do not use this product if a pilot hole is drilled. ●Cobalt and inorganic compounds are designated as specific chemical substances, but are exempt from regulations because they do not emit dust amounts that cause health problems during normal use.