The Sunex impact bit driver is designed for use on tough to turn screws or nuts, Bit holder contains 1/2"" and 5/16"" hex for Phillips and Flat head screwdriver bits, Screwdriver accessory is removable enabling user to use the impact action to remove stuck nuts with an impact socket attached to the tool, Includes 8 bits and is fully guaranteed, Used to loosen hard-to-turn nuts or screws, Bit holder contains 1/2"" and 5/16"" hex for Phillips and flat, Handle design prevents and protects hand from hammer when striking the tool, Includes 8 screwdriver bits, Bit accessory is removable enabling use on sockets as well, Length: 12, 2, Width: 5, 5, Height: 2, 8, SKU: ISN8483