Milwaukee Electric Tool 48 32 4006 Shockwave Bit Set (40 Piece) Beenie The optimized Shock Zone geometry Storage Rack; Car Rack; Truck Rack; Bike Rack; Roof Rack The optimized Shock Zone geometry is unique for each tip type to provide up to 30X longer life and absorb 3X more torque versus other impact bits 0 Battery Pack provides 50% more power and runs 50% cooler vs M18 REDLITHIUM XC battery packs The Impact Duty bits in the Milwaukee 40 piece Shockwave impact driver bit set consist of heat treated Alloy76 steel to withstand the higher torquing demands of impact drivers The set includes Milwaukee magnetic drill bits meant to drive nuts up to 3 8 inch in diameter