Our SHOCKWAVE™ Impact Duty™ Step Bits are engineered to deliver the most durable and fastest impact step bit solution. Our step drill bits are made in the USA with global materials and give you the best performance in impact drivers and the versatility to be used in drills. The 1/4" Hex shank has an optimized SHOCKZONE™ Body providing the industry’s most durable shank, reducing early shank breaks. A Titanium Aluminum Nitride (TiAlN) coating delivers 5X longer life, while the Rapid Strike™ Tip and spiral flute drill 2X faster. Our 1/8 - 1/2" step drill bit has 13 steps with laser etching for clear size identification.