The drill socket adapter made from heat treated hardened Chrome Vanadium (-V) Steel to a long through tough torque jobs without breaking or rusting heavy duty construction to be compatible with the most powerful impact driver. SIZE: 1/4 inch 3/8 inch 1/2 inch impact driver bits and each with a 1/4 inch hex shank driver socket wrench adapter set.Convert any power tools set drill bit set into a nuts socket set. DESIGN: The spring ball lock ensures a tight fit into the driver head to prevent slipping during use. Double tooth hex shank specifically machined to fit securely into a hand held driver, drill driver or impact wrench. Multifunctional: The extension bit holder is designed to provide a securely locked in extension to your existing tool. Provides additional length to reach into a multitude of hard to reach space. Attach these extender bars to any powered or cordless drill chuck or Impact driver to turn it into a high speed nut driver. USE: The impact socket adapter is a useful accessory for conversion. Useful for automotive mechanic vehicle repairs, technicians, & hobbyist developments to use with sockets on hardware tire nuts, lag bolts, hex head cap screws , workshop factory or construction site. Material:steel colour:Black + silver Package Contents: 1 * (1/4 inch hex shank to 1/4 inch socket)Socket Adapter 1 * (1/4 inch hex shank to 3/8 inch socket)Socket Adapter 1 * (1/4 inch hex shank to 1/2 inch socket)Socket Adapter 1 * magnetic extension bit holder Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.