Magnetic Bit Holder This set includes: 4 magnetic bit wrenches. Magnetic bit holder for hex screwdriver length 60mm, hex shank diameter 6.35mm. Screwdriver bit with ¼ inch hex screwdriver. Magnetic screwdriver extension for DIY work, repairs, etc. Premium Material: This magnetic holder is made of high quality chrome vanadium alloy steel. The magnetic bit holder has good wear resistance. Durability and high hardness, and can be used for a long time. The magnetic screwdriver bit holder with hex handle has a permanent magnet to ensure the safety of the magnetic screwdriver bit holder with hex handle. The bit holder has a magnetic fastening head, but there is no magnetic fastening screw on the head. The magnetic bit holder is suitable for impact wrenches, electric screwdrivers, hand screwdrivers, electric drills, pneumatic drills, etc. Magnetic screwdriver extension and can be extended The magnetic screwdriver bit holder with hex shank. >Easy Installation: To use the magnetic bit holder,