Check the listing for details. 2pcs 6 Point Impact Socket 5/8" Socket 1/2" Square Drive 1.5" Long 40CRMO,. Condition: New. Listed at 19.95 USD. Our impact sockets are made of 40CRMO, which has high hardness and toughness, and can withstand the high torque generated by high-pressure impact tools. The surface is phosphating, which has excellent corrosion resistance, wear resistance, and rust resistance, ensuring that it is not easy to wear in high-friction environments.6-point opening allows for tight and secure installation of hexagonal fasteners, preventing them from slipping or loosening during operation and allowing for maximum torque to be applied. The rounded corner design increases the contact surface, evenly distributing force to the flat face of the fastener, preventing nuts and bolts from rounding off under high torque applications and extending tool life.