Sunex 2858 1/2-Inch Drive Deep 8-Point SAE Impact Socket Set, 13-Piece CR-MO alloy steel for long life Lifetime warranty Heavy duty blow molded storage case 8 Point design accommodates most railroad applications SAE - inches: 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1, 1-1/16, 1-1/8