EZARC Step Drill Bit for Metal, M35 Cobalt Step Drill Spiral Flute Unibit Step Drill Bit (1/4”-3/4”) Wear-Resistant AlTiN Coated, 1/4″ Hex Shank for Metal, Stainless Steel, Aluminum, Plastic 1/4” – 3/4”

A wear-resistant EZARC step drill bit built from M35 cobalt high-speed steel with an AlTiN coating, featuring a triple-flute spiral design and nine step sizes from 1/4″ to 3/4″—ideal for clean, controlled holes in sheet metal and more.