The Stark 3/8 in. and 1/2 in. Drive Master Shallow and Deep SAE/Metric Impact Socket Set includes the most popular SAE and Metric size shallow and deep impact sockets designed to withstand the demands of high-force impact drivers. The sizes are embossed on the case as well as engraved on our sockets, so you never have to figure out what size you have. These impact sockets are drop forged, heat treated, industry steel and feature high visibility markings for quick and easy socket selection. 3/8 in. Drive Shallow Sockets: 8 mm (5/16 in.), 9 mm, 12 mm, 13 mm, 14 mm, 16 mm (5/8 in.), 17 mm, 3/8 in., 7/16 in. (11 mm ), 1/2 in., 9/16 in., 11/16 in., 3/4 in. (19 mm ); 1/2 in. Dr. Shallow Sockets: 10 mm, 11 mm (7/16 in.), 12 mm, 13 mm, 14 mm, 15 mm, 16 mm (5/8 in.), 17 mm, 18 mm, 21 mm, 24 mm (15/16 in.). All socket bits are coated with a black oxide finish to resist corrosion and rust. 1/2 in. Drive Shallow Sockets: 10 mm, 11 mm (7/16 in.), 12 mm, 13 mm, 14 mm, 15 mm, 16 mm (5/8 in.), 17 mm, 18 mm, 21 mm, 24 mm (15/16″); 1/2 in. Drive Deep Sockets: 1/2 in., 9/16 in., 11/16 in., 3/4 in. (19 mm ), 13/16 in., 7/8 in. (22 mm ), 1 in., 1-1/16 in. (27 mm ), 1-1/8 in., 1-1/4 in. (32 mm ); Adapter: 1/2 in. (M) x 3/8 in. (F); Extension Bar: 3/8 in. Dr. x 3 in./1/2 in. Drive x 3 in.; Included with carrying case.