TEKTON 1/4 Inch Drive 6-Point Socket Set with Rails, 50-Piece 5/32-9/16 in. Drive standard 6-point inch sockets: 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16 in. Drive deep 6-point inch sockets: 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16 in. Drive standard 6-point metric sockets: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 mm; 14-pc. Drive deep 6-point metric sockets: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 mm; Socket rails and trays. 6-point socket opening provides an ideal, exact fit for hex-shaped fastener heads. Socket geometry is designed to apply force to flat sides of fasteners and not the corners, preventing round-off. Includes standard and deep length sockets. Extra-large die-stamped size markings are easy to read and can’t wear off. Polished, chrome-plated finish easily wipes clean and is highly resistant to corrosion. Four detent grooves provide a secure connection with the drive tool.