The 38-Piece Shockwave Impact Driver Bit Kit is engineered to offer you the Most Durable， Best Fitting driver bits on the market. This comprehensive set offers you solutions for a wide range of driving applications. These bits feature a 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 Milwaukee Shockwave Driver Bits are built to deliver extreme durability in the most demanding applications.