Description:1\/4inch Hex Shank Drill Screwdriver Magnetic Drywall Screw Bit Holder Tool Features:   - 1\/4inch hex shank drywall screw bit holders. - For use with drills and power screwdrivers. - Allowing for accurate working with drywall screws.   Specifications:   Material: Chrome-vanadium steel Color: Blue and Black Overall length: 58mm Hex Shank diameter :1\/4 inch (6.35mm)   Package included:   1 !#!amp!*!times; Hex Shank Holder  Details pictures: