9pcs Hex Screwdriver Bit Set Rustproof Steel Magnetic Head Hex Bits 1Celsius4 Inch Hex Shank

Professional Manufacturing: Hex screwdriver bit set features magnetic head, professional manufacturing, fine workmanship, high . Function: Each can be accurately locked screws, no damage to the screw and the screwdriver head, convenient for using. High Quality Material: end hex screwdriver bit set is made of high quality steel material, high hardness, sturdy and . Item Type: 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: H1.5Celsiu .0Celsiu .5Celsius3.0Celsius4.0Celsius5.0Celsius6.0Celsius8.0Celsius10(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.