4pcs Hex Screwdriver Bit Set Steel Magnetic Hd Hex Bits 1/4 Inch Hex Shank

High Quality Material: end hex screwdriver bit set is made of high quality steel material, high hardness, rustproof, strong and . Professional Design: Hex screwdriver bit set ftures magnetic hd, professional manufacturing, fine workmanship, high . Strong Magnetic: The magnetic hd can sily hold the screws during installation, can improve your work efficiency, save your energy. Item Type:  End Hex Screwdriver Bit Material: steel   plating anti rust Hd Type:   End System:  Shank Dia: Approx. 1/4in / 6.35mm Hardness: About 56-58 HRC Applicable Screw: H3.0/4.0/5.0/6.0(mm) Characteristic: High  , , magnetic, multipurpose, magnetic bits, can sily hold the screws during installation Fitment: fit for electric screwdriver, manual screwdriver, electric drill, screwdriver and other tools.