["Features:\r\nfor Duo ends with female 1/2 inch adapter on one end and a 1/4 inch female hex-adapter on other end\r\nMade with steel for durability and the ability to withstand the high shock of impact drivers\r\nConvert any air or power impact wrench into a drill or ratcheting wrench into a driver with this single piece chuck converter\r\nQuick-release mechanism allows for easy, one-handed swapping between bits while working\r\nAdapter securely holds any 1/4\" hex-shank bit; Eliminates the need for expensive driver sockets\r\n\r\nSpecifiations:\r\nMaterial: Chrome Vanadium Steel\r\nColor: Black\r\nTop Diameter: 18mm/0.71\" \r\nBottom Diameter: 23mm/0.91\"\r\nLength: 50mm/1.97\"\r\nQuantity: 1 Set\r\n\r\nNote:\r\nPlease allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.\r\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r\n\r\nNo Retail Package\r\nPackage Includes:\r\n1 x Hex Shank Converter\r\n1 x Bolt\r\n1 x Rubber O-ring"]