TRUSCO Step Drill for Hexagonal Socket Bolts M3 TSRMM3A 1 Piece

Catalog number: TSRMM3A Features: ●For hexagon socket bolts. Applications: ●Workpiece: Cast iron, carbon steel, alloy steel, tool steel, stainless steel, aluminum alloy. Specifications: ●Small diameter (mm): 3.4 ●Large diameter (mm): 6.5 ●Step length (mm): 13 ●Groove length (mm): 25 ●Total length (mm): 65 ●Shank diameter (mm): 6 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.