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 The Milwaukee? Shockwave? 75pc Impact Drill Drive Set is the Most Durable, Best Fitting driver bits on the market. The Wear Guard Tip? increases wear resistance, protecting the fit over the life of the impact bit. The Shockzone? is optimized for each tip type and length of driver bit to absorb peak torque and prevent breaking. The driver bits have Custom Alloy76? for a customized steel and heat treatment per tip type to extend driver bit life, providing up to 50X life. The Milwaukee Shockwave? driver bits are built to provide extreme durability for the most demanding applications.