Description: Ends with female 1/2 inch adapter on end and a 1/4 inch female hex-adapter on the other end. Made of steel for durability and the ability to withstand the high shock of impact drivers. Convert any air or power impact wrench into a drill or ratcheting wrench into a driver with this single piece chuck converter. Quick-release mechanism allows for easy, -handed swapping between bits while working. Adapter securely holds any 1/4" hex-shank bit; Eliminates the need for expensive driver sockets. Specification: Material: Chrome Vanadium Steel Color: Black Top Diameter: 18mm / 0.71inch Bottom Diameter: 23mm / 0.91inch Length: 50mm / 1.97inch Package Includes: 2 Pieces Hex Shank Converter Note: 1.Please allow a slight difference between the size above and the actual item due to manual measurement. 2.Due to the difference between different monitors, there could be a little color difference acceptable, please kindly note.