The STEELMAN PRO 78520 1/4-Inch Drive Deep Well SAE Socket Set provides you with seven high-quality, chrome-vanadium steel sockets. The heat-treated satin finish provides a non-slip surface that is a saving grace when youre working with greasy hands, and the included clip-on storage rail is ideal for keeping your workspace more organized. The thin-walled design allows these sockets to access fasteners in confined spaces. The set includes the following 6-point sockets: 1/4, 9/32, 5/16, 11/32, 3/8, 7/16 and 1/2-inch. To make identifying the sizes easy the size callouts have been laser-etched onto the side of the sockets in easy to read letters.