Sunex 3361 SAE Deep Impact 12-Piece Socket Set, 3/8-Inch Drive Chrome-molybdenum alloy steel for long life Heavy-duty blow molded storage case Includes most common SAE sizes used for automotive repairs Radius corners on the hex and square drive for extended life and reduced wear on fasteners Guaranteed to perform CR-MO alloy steel for long life Lifetime warranty Heavy molded storage tray Includes most common SAE sizes used for automotive repairs SAE - inches: 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1