The Vevor step drill bit is designed to create 12 hole sizes from 3/16" to 7/8" with one tool for efficient drilling across multiple materials. Made from M35 cobalt high-speed steel with a TiAlN coating, it is built for durability and long-lasting sharpness. Its 118° tip and 4-flute spiral design help produce clean, burr-free holes while improving chip removal and reducing heat buildup. The 1/4" hex shank offers quick compatibility with most standard drills. This bit is suitable for stainless steel, sheet metal, aluminum, wood, plastic, and fiberglass up to 1/8" thick.