Features:Aluminum alloy material suitable for heavy impact drivers Spring-loaded ball bearing on the head holds the sockets securelySuitable for 1/4" quick chucks or directly to the drill chuckChange the hand socket set to a driven socket setThis kit is ideal for an impact wrench or drill and allows you to replace the ratchet on a power toolThese impact-ready adapters are designed for the most demanding applications1/4" hex chuck fits all quick change chucks as well as standard drill chucksSocket Drill Adapter Screwdriver Socket Extension Rod 3 Set pc 1/4" 3/8" 1/2" Specifications:Material: Chrome Vanadium SteelChrome PlatingAll Sockets Standard 1/4" Hex Shank Size:Length 1/4x1/4x65mm - 1/4" shank can be converted to 6.35mm square head Length 3/8x1/4x65.8mm - 1/4" shank can be converted to 9.4mm square head 1/2x1/4x68mm length - 1/4" shank can be converted to 9.4" shank convert to 12.6mm square headQuantity: 1 set/3 pcsNote: This is manual measurement, there may be 1-2mm error, please understand. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Included:1 x (1/4" Hex Chuck to 1/4" Socket Adapter1 x (1/4" Hex Chuck to 3/8" Socket Adapter1 x (1/4" Hex Chuck to 1/2") Socket Adapter