[1 or 4 inch Hex Shank Screwdriver Bits Holder]Package includes 12 pieces of 1 or 4 hex shank handle keychain extension rod with a black metal hanging buckle, compatible with most 1 or 4 fast hex handles and 1 or 4 hex sockets and various electric screwdrivers, hand-held screwdrivers, and drill bits.[Strong and Sturdy]The drill bit extension bracket is made of high-quality metal, can achieve maximum durability, and extend the service life, and the chrome-plated surface is anti-rust and corrosion-resistant,anti-oxidation.[Safety to Use]It can be carried with you to avoid accidental dropping of the hexagonal handle. It is easier to pick up the product and replace the drill bit you need with one hand, which helps to ensure the safety of high-altitude operations[Protable and Widely Application]The keychain extension rod with small size and easy to carry around, suitable for the transfer of various drill bits, screwdrivers, etc. It can also be used as a keychain.Specification:Drive System: HexColour:Photo ColorMaterial:MetalSize:10.49 x 7.19 x 2.79 cmPackage Contents:12 x Holder Extension BarOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.