Features: _x000D_ 1. Adopting chrome vanadium steel material, the socket adapter is of high harness, strong strength and long durability. _x000D_ 2. The spring loaded ball bearing makes the adapter holds the socket firmly. _x000D_ 3. 1/4inch hexagonal shank is suitable for all quick change chuck and standard drill chuck. _x000D_ 4. A great tool to change the hexagonal size into square size, convenient for the installation of socket. _x000D_ 5. It can be installed on the pneumatic screwdriver, electric screwdriver, electric drills and more electric tools. _x000D_ _x000D_ Specifications: _x000D_ Material: chrome vanadium Steel _x000D_ Color: black, silver (Optional) _x000D_ Adapter size: 1/4", 3/8", 1/2" _x000D_ Overall Length: 65mm/2.56in, 65mm/2.56in, 73mm/2.87in _x000D_ Weight: Approx. 91g _x000D_ _x000D_ Package Included: _x000D_ 3 x Socket Adapter _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Note: _x000D_ 1. Due to the difference between the monitors and light effect, the picture may not reflect the actual color of the item. _x000D_ 2. Please allow small deviation due to manual measurement. Thanks for your understanding.