Includes:3Pcs – 1/4” drive adapter, 3/8” drive adapter, and 1/2” drive adapter and each with a 1/4 inch hex shank driver socket wrench adapter set . Connect impact sockets/socket wrenches/sockets bits/driver sockets to power cordless drill. - These adapters are handy for attaching a socket sets/Ratchet Sockets/socket wrench/Ratchet Universal Sockets Wrench to an electric drill. Spring loaded ball bearing on square driver head holds sockets securely. Suitable for screwdriver or power drills has a quick change 1/4” chuck systems or directly into drill chuck. Change your hand tools socket sets into a impact/drive sockets. - This 3 piece Hex Shank Bit Driver Extension Bar Set is designed to meet a variety of needs. Fits snugly and securely in your drill chuck or hand held driver. Consisting of your most common bit sizes 1/4”, 3/8”, and 1/3” changing shank sizes. Provides versatility and convenience no matter which tool you chose to use. Great for the DIY, household maintenance, and most general repairs, not for industrial work. A great tool addition to any tool box set. Material:Chrome Vanadium Steel for home use - Specification: Sockets Standard 1/4” hex shank to 1/4” 3/8” 1/2” socket & 1/4 “ shank can be converted to 1/4” 3/8” 1/2” square head. - Easy to Choose: Different colour coded rings, make it easy to pick the right one. Easy to Choose: Different colour coded rings, make it easy to pick the right one. - Purpose: This adapter set 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 spaces. The spring ball lock ensures a tight fit into the driver head to prevent slipping during use. Specifically machined to fit securely into a hand held driver, drill driver or impact wrench. - Package includes: 1× (1/4” hex shank to 1/4” socket)Socket Adapter 1× (1/4” hex shank to 3/8” socket)Socket Adapter 1× (1/4” hex shank to 1/2” socket)Socket Adapter