Zumist Hex Shank Screwdriver Bits Holder Keychain, 11IN1 Extension Bar Drill Screw Aluminum 1/4inch Adapter

【High Quality Material 】 Made of aluminum alloy, and feature nice durability, lightweight, sturdy. The interior is not completely empty. It can be fitted with a short bit or a long bit.【Perfect Design】The cupped design of hex shank keychain extension bars are designed for your easy holding and convenient replacing another drill bit.【Smooth&Safe to Use】The smooth surface processing and pull-out bushing can avoid accidental dropping of tools and facilitate high-altitude operations.Comes with a chain buckle, which can be hung on a belt.Compact and portable, easy to carry around.【Extensive Usage】Suitable for most screwdriver bits.The universal 1/4-inch fast hex shank and 1/4-inch hex socket are compatible with a variety of electric screwdrivers, hand-held screwdrivers and drill bits.