Milwaukee's SHOCKWAVE? Slotted Impact Bits are engineered to be the Most Durable, Best Fitting driver bits on the market. The slotted bits feature Wear Guard Tip? for increased wear resistance which protects the fit over the life of the bit. The impact driver bits have an optimized Shockzone? for each tip type and length of driver bit to absorb peak torque and prevent breaking. The Custom Alloy76? is customized and heat treated to extend the life of the driver by up to 50X vs. competitive impact driver bits. The MILWAUKEE? SHOCKWAVE? Impact Duty? driver bits are built to deliver extreme durability for the most demanding applications.