Feature:1. Stainless Steel and 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 KeychainMaterial: Stainless Steel and Aluminum AlloyPurpose: Socket Connecting RodSocket Post Colour: Black, Green, Red, Yellow, BlueKeychain Socket Size: 1 or 4inSuitable Keychain Socket Handle Type: Hex Handle.Package List:5 x Socket Holder1 x Carabiner