Milwaukee 40 pc Impact Drill and Drive Set. Shockwave Impact Duty. Includes Assorted Insert And Power Bits, Magnetic Nut Drivers, Hex Shank Drill Bits, Socket Adapters And Magnetic Bit Holder. Milwaukee magnetic drill bits can drive up to 3/8-inch nuts. Geometrically designed Shockzone shafts unique to each bit provide optimal impact absorption from torquing force. Custom-engineered screw and drill tips provide precise contact points.