Description Magnetic Bit Holder Set includes: 4 pieces magnetic bit holder + limit ring + wrench. Hex Shank Magnetic Screwdriver Bit Holder Length 60mm, Hex Shank Diameter 6.35mm.Screwdriver Bit Holder with Screwdriver hexagonal. Magnetic Screwdriver Extension suitable for DIY, repairs etc. Premium Material: This magnetic holder is made of high quality chrome vanadium alloy steel. Magnetic Bit Holder With good wear resistance, durability and high hardness, it can be used for a long period.Hex Shank Magnetic Screwdriver Bit Holder has a permanent magnet that ensures a firm and secure hex shank magnetic screwdriver bit holder. Easy to use: Magnetic bit holder has a magnetic attachment head, but there is no magnetic attachment screw on the head, magnetic bit holder is suitable for impact wrenches, electric screwdrivers, screwdrivers manuals, electric drills, air drills, etc.Magnetic Screwdriver Extension Easy to install on your magnet bithalter and can extend hex shank magnetic screwdriver bit holder. Easy to install: To use magnetic bit holder, hex shank magnetic screwdriver bit holder must be placed in the drill holder. When removing the screwdriver bit holder, the black release ring must be removed before removing the magnetic screwdriver bit holder. Pull the black clip in front of the screwdriver bit holder, insert the magnetische bits all the way in and pull the knurled surface to release it. Field of application:Magnetic Bit Holder fits for universal 1/4 hex shank Magnetic Screwdriver Bit Holder and Screwdriver Extension Hex Shank for transferring screwdrivers,bits,etc.Magnetic Screwdriver Extension has a Hex Shank Magnetic Screwdriver Bit Holder, so will work with all standard rechargeable screwdrivers, screwdrivers and screwdriver bit holders. Screwdriver bit holder used in garages, warehouses, offices, homes, cars, etc.