[Strong & 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 is anti-rust and -,. [1/4 inch Hex Shank Screwdriver Bits Holder]Package includes 50 pieces of 1/4 hex shank handle keychain extension rod with a black metal hanging buckle, compatible with most 1/4 fast hex handles and 1/4 hex sockets and various electric screwdrivers, hand-held screwdrivers and drill bits. [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 the safety of high-altitude operations. [Protable & Widely Application]The keychain extension rod with a 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., Manufacturer: Jnchdghwa