1/4'' Universal Soft Shaft Head Part Connected to Electric Drill Manual Wrench Adjustable Screwdriver Bit Extension It can be connected to an electric drill, electric drill or hand wrench, constricting, reaches the place to turn the ruby and nut that other exercises are not able to reach. The pick-up chuck is applicable to electric drill and wrench, the functional head is equipped with lock and magnetic device, make sure the sleeve will not fall off. A professional tool to deal with corners and the problem of constriction that an ordinary screwdriver can't reach. Easily solve car engine repair stricture uninstall screws. Good screwdriver assistant, necessary car repair. SpecificationsMaterials MetalProduct Weight 60g / 75g / 100g / 130g Package Contents 1 x Soft Shaft HeadNote Due to manual measurement, please allow slight measuring deviations.