The OEMTOOLS 42-pc 3/8” Impact Socket Set, No. 23983, includes a variety of metric and SAE size deep and shallow sockets, extension bar, and universal joint. The set comes in an EVA tray with custom cut contrast soft foam to keep the tools organized. Most trays have sizes etched in them for quick and easy identification. The sockets are made with alloy steel that is heat-treated for extra strength and longevity. The shallow and deep socket sizes include: SAE 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", and 3/4"; metric 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, and 19 mm in addition to a 3/8” drive 3” extension bar.