GRIP 73125 3/8-Inch SAE Professional Socket Set, Chrome, 21-Piece Drop forged, heat treated, chrome vanadium steel. Chrome plated to resist rust and corrosion. Includes: 8" reversible quick release ratchet, 2 pc extension bars, 8 pc deep 3/8" sockets, 9 pc 3/8" shallow sockets, blow mold case. Sizes: deep (3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16"), shallow (3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8").