Product DescriptionThe Milwaukee Shockwave 50pc 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.