Porter-Cable PTA9 1/2-Inch SAE Deep Impact Socket Set, 12-Piece including case 11-piece deep impact socket set Each socket is made of a durable chrome vanadium steel for longer life 1/2-inch socket size Includes the following sizes (inches): 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1 Set also includes a durable carrying case