Milwaukee SHOCKWAVE™ Impact Driver Bits are the Most Durable, Best Fitting driver bits on the market. The WEAR GUARD TIP™ increases wear resistance, protecting bit fit over the life of the bit. The Shockzone™ is optimized for each tip type and length of driver bit, absorbing peak torque and preventing breaking. CUSTOM ALLOY76™ steel and heat treatment is customized for each tip type for up to 50X bit life. The SHOCKWAVE™ impact driver bits provide extreme durability for the most demanding job site applications.