Milwaukee SHOCKWAVE™ Impact Duty™ 1/2" - 1" 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 drill bit ensures durability and reduces the risk of shank breaks. It is coated with Titanium Aluminum Nitride, which provides up to 5 times longer life. The Rapid Strike™ tip combined with a dual spiral flute design enables drilling holes twice as fast. For added convenience, each bit is laser engraved with its size for easy identification. Model Number: 48-89-9248