Description Milwaukee SHOCKWAVE Impact Duty 3PC Step Bit Kit (#1, #2, #4) is designed for ultimate durability, speed, and versatility in impact drilling. Made in the USA with global materials, this kit delivers best-in-class performance for impact drivers while remaining compatible with standard drills. Ideal for professional and DIY use, these step bits provide fast, clean holes with long-lasting reliability across a variety of materials.Product Details:Includes #1 1/8â1/2", #2 3/16â1/2", and #4 3/16â7/8" step bitsTitanium Aluminum Nitride (TiAlN) coating extends bit life up to 5x longerRapid Strike tip and dual spiral flute design produce 2x faster, cleaner holes¼ inch hex shank with optimized SHOCKZONE body reduces early shank breaksCompatible with impact drivers and standard drillsLaser-engraved size markings allow quick and accurate identificationMade in the USA with global materials