23pc 1/2" SAE & MM Deep Impact Socket Set

Engineered and constructed for high torque application. Specifically designed to engage with flats of fasteners. Prevents rounding during high torque jobs. Black oxide finish is corrosion resistant. 6 Point socket with fastener gives increased torque. Large markings offer easy identification. Meets or exceeds ASME specifications. Includes: (11) 1/2" Drive SAE Deep 6pt impact sockets. (11) 1/2" Drive MM Deep 6pt impact sockets. 1/2" Drive 3" Extension bar.