1/2" Drive 13 PC SAE Impact Socket Set | ITCHeat treated Chrome Molybdenum sockets for professional applicationsTorque-Drive® sockets apply torque to flats of fasteners to prevent corner rounding and increase torqueBlack phosphate finish resists corrosion and will not peelLarge easy to read size markings for quick identificationComplete with hand blow mould storage case Contents : 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, 1-1/4"