Description: Easy, Lightweight, fast, connect to the standard hex screwdrier Durable, can be used for a long time. Better accessibility to drive screws and drill holes in tight spaces It can be connected to drill , rechargeable drill or manual wrench Fits: 1/4" 6.35MM Hex Drill Bit Screwdriver Material: Alumimium and Iron Specification: Hex shank: 6.35mm (1/4") Size: 158*98*40mm Package Includes: 1x Screwdriver Bit Adaptor