Craftsman 10 Piece Socket Accessory Set - 1/4, 1/2 and 3/8 Drive, 9-42351 Includes 3 adapters: 1/2-3/8 in, 3/8-1/4 in, 1/4-3/8 in; 3 universal joints: 1/4 in, 3/8 in, 1/2 in; 4 extension bars: 1-1/2 in, 3 in, 6 in, 10 in Made of a rugged steel alloy to stand up to tough torquing jobs Polished chrome finish makes for an easy clean-up, even after the dirtiest jobs Clear markings make finding the right tool easy Backed by Craftsman's Lifetime Guarantee