Features and Benefits:�Wear Guard Tip protects fit over the life of the bit�Optimized Shockzone absorbs peak torque and prevents breaking�Custom Alloy76 Steel engineered for extended life�Up to 50X Life vs other impact bits�Laser etched size for easy identificationMilwaukee SHOCKWAVE Impact Duty driver bits are engineered for extreme durability and up to 10x life. Made from proprietary steel and heat treated to control hardness, the SHOCKWAVE Impact Duty driver bits feature an innovatively designed geometric shock absorption zone to extend life. The forged tip allows for a secure grip and maximum contact eliminating stripping or slipping.