Feature: 1. Stainless Steel + Aluminum Alloy: The socket rod is made of high quality stainless steel and aluminum alloy has high hardness, wear resistance, durability and long service life. 2. Adjustable Collar: Fast change of hex handle and adjustable collar, one handed operation, suitable for most electric drives, handheld drives and drill bits. 3. Cupping Design: Hex handle keychain adopts cupping design, which is easy to grasp and easy to replace with another bit. 4. Removable Bushing: The socket rod has a smooth surface and a removable bushing to prevent the hex handle key chain extension rod from falling off. 5. Application: The socket rod is small and easy to carry around, suitable for drill bits, screwdrivers, bits, etc. Specification: Item Type: Hex Shank Keychain Material: Stainless Steel + Aluminum Alloy Purpose: Socket Connecting Rod Socket Post Colour: Black, Green, Red, Yellow, Blue Keychain Socket Size: 1/4in Suitable Keychain Socket Handle Type: Hex Handle. Package List: 5 x Socket Holder1 x Carabiner