13-Piece SAE Standard CR-MO Impact Socket Set Designed for professional mechanics and serious DIYers, this impact socket set delivers superior strength and wear resistance through its heavy-duty Chrome Molybdenum (CR-MO) construction. The 6-point design maximizes contact with fasteners to reduce rounding under high torque. This set covers a wide spectrum of fractional sizes including 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", and 1-1/4". Finished with a durable black coating for rust protection, these sockets are built for long-lasting performance in demanding work environments.