This versatile double-ended bit removes damaged screws, machine screws and broken bolts from wood, metal and plastic. It can remove screw sizes from Nos. 4 - 24 and broken bolts from size M4 - M12. Removes cleanly from wood, metal or plastic. Made from High Speed Steel. Removes screws made of any alloy including soft brass. Removes free spinning screws. Winslow tip for self centring. Double-ended (burnisher & tapered thread). Serrated extracting end of tool results in greater torque for hard to remove screws. Hex shoulder to aid removal of jammed screw or bolt. Set of four bit sizes No.1, No.2, No.3 and No.4. Specifications • Pack Qty: 4 piece Contents: 1 x No.1 bit 1 x No.2 bit 1 x No.3 bit 1 x No.4 bit