DEWALT DW2522 32-Piece Rapid Load Set Quick and easy accessory changes allow users to finish jobs faster Hex shank locking system prevents bits from slipping Rapid Load Holder fits all brands of corded/cordless 3/8-inch or 1/2-inch Drill/Drivers Rapid load holder fits all brands of corded/cordless 3/8-Inch or 1/2-Inch drills