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 is engineered to extend bit life�Precise Fit Custom Machined Tip prevents stripping and reduces wobble.�Shockzones™ are optimized in both length and width per tip type for best performance across tip types.�Laser hardening at the tip creates an outer protective shield for improved wear resistance.�Customized geometry and heat treatment per tip type for best performance across tip types�Up to 50X Life vs other impact bits�Laser etched size for easy identification�Designed for use with Impact Drivers and Drill Drivers.Milwaukee® SHOCKWAVE™ Impact Duty™ ECX™ driver bits are engineered for extreme durability and up to 10x life. ECX™ Driver bits are a combination of Phillips, square recess and slotted tips designed for superior grip to eliminate rounding out fastener heads. Made from proprietary steel and heat treated to control hardness, the SHOCKWAVE™ Impact Duty™ ECX™ 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.