4pcs Hex Screwdriver Bit Set Steel Magnetic Head Hex Bits 1Celsius4 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 features magnetic head, professional manufacturing, fine workmanship, high . Strong Magnetic: The magnetic head can easily hold the screws during installation, can improve your work efficiency, save your energy. Item Type:  End Hex Screwdriver Bit Material: steel   plating anti rust Head Type:   End System:  Shank Dia: Approx. 1Celsius4in Celsius 6.35mm Hardness: About 56-58 HRC Applicable Screw: H3.0Celsius4.0Celsius5.0Celsius6.0(mm) Characteristic: High  , , magnetic, multipurpose, magnetic bits, can easily hold the screws during installation Fitment: fit for electric screwdriver, manual screwdriver, electric drill, screwdriver and other tools.