Milwaukee® SHOCKWAVE™ 48-89-9257 Electrical Step Drill Bit Set, 1/8 in Min Drill Bit, 1-1/8 in Max Drill Bit, 3 Pieces, For Use With Impact Drivers and Drill Drivers, Titanium, TiAlN

The MILWAUKEE® SHOCKWAVE™ Impact Duty™ Electrical Step Bits are engineered to deliver the most durable and fastest impact step-bit hole-drilling solution. The step drill bits are made in the USA with global materials and give you the best-in-class performance in impact drivers, with the versatility to be used in drills. The ¼" hex shank has an optimized SHOCKZONE™ body providing you with the industry's most durable shank, reducing early shank breaks. A Titanium Aluminum coating helps deliver you 5x longer life, while the step drill bit's Rapid Strike™ tip and dual spiral flute produce 2x faster holes. The step drill bit kit features the #1 1/8 - 1/2", #4 3/16 - 7/8", and #9 7/8" &1-1/8" step bits, with laser engraving for a clear stop on size identification.