Makita Impact 75mm 3" One Piece Screwdriver Bit Holder Magnetic bit holder provides convenient pick-up and retention of screws C-clip securely retains bits in the holder One-piece design is engineered for maximum durability Solid stainless steel construction for increased strength in impact drivers Ideal for driving screws in a variety of heavy duty applications including metal fastening, deck building, framing, and installing plywood subfloor For use with high torque impact drivers and driver-drills