Diablo 1/2 in. 13-Step Drill Bit

Diablo step drill bits deliver high performance and durability for electrical, plumbing, and HVAC applications. The split point tip design enables fast, accurate starts on contact, preventing bit walking and extending cutting life. Precision CNC grinding ensures strict angle tolerances on each step for smooth, efficient drilling and minimal bit wear. Engineered with an optimized dual-flute geometry, this step drill bit produces jam-free cuts in thin sheet metal, PVC, and other plastics. The hex shank design ensures secure retention in standard drill chucks and quick-release impact drivers, maximizing productivity across cordless and corded power tools.