Input Drive Size: 3/8" Drive Shape: Square Rail Length: 200mm Type: 12 Point Semi-Deep Socket Set on Rail Output Sizes: 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4 Includes: 9 Semi-Deep Sockets on Rail Opening: 12pt