Milwaukee SHOCKWAVE™ Impact Duty™ 3/16" - 1/2" Step Drill Bit delivers -in-class performance in impact drivers and the versatility to be used in drills as well. Featuring a 1/4-inch hex shank optimized with a Milwaukee SHOCKWAVE™ body, this step drill bit ensures durability and reduces the risk of shank breaks. It is coated with Titanium Aluminum Nitride, providing five times longer life d to standard bits. The Rapid Strike™ tip combined with a dual spiral flute design enables drilling twice as fast, making your work more efficient. For added convenience, each bit is laser engraved with its size for easy identification. Model Number: 48-89-9242