Milwaukee SHOCKWAVE™ Impact Duty™ 1" PH1 Phillips Bits, 2-Pack are designed for extreme durability and up to 10 times the life of standard bits. Crafted from proprietary steel and heat treated to precisely control hardness, these bits feature a unique geometric shock absorption zone that significantly extends their lifespan. The forged tip ensures a secure grip and maximum contact, effectively preventing stripping or slipping during use. ly suited for cordless tool users, the SHOCKWAVE Impact Duty™ accessory line provides a comprehensive solution for heavy-duty impact applications, meeting all your drilling and fastening needs with reliability and strength. Model Number: 48-32-4411