Features EFFICIENT FAST CHANGE ROD: Easily and quickly change different specifications of screwdriver bit, improve work efficiency MULTI FUNCTIONAL HEX HANDLE DESIGN: Suitable for different working scenarios, enhance the adaptability of screwdriver bit holder tool DURABLE SOCKET TRANSFER ROD: Made of excellent bearing steel material, durable, possess high reliability APPLICABLE SCENARIO: Set include carabiner and six color extension rod, can be hung in the backpack, key ring and other required places, can also be used for tent, rope and other connections PORTABLE AND PRACTICAL: The keychain drill screw adapter has a universal hex interface and is suitable for the mainstream 6.35MM hex handle screwdriver bit on the market. Easy to install, delicate and small, portable Specification: Item Type: Keychain Drill Screw Adapter Material: Bearing steel Package List:1 x Keychain Drill Screw Adapter Package List 1 x Keychain Drill Screw Adapter