This 1/2" drive action socket with an 18 mm wrench width and 7 mm wrench depth ensures precise engagement and secure grip on hexagonal nuts, ideal for industrial and mechanical applications. Its 78 mm length and magnetic feature enhance usability with impact screwdrivers, improving efficiency and safety. Key features: - 1/2 inch square drive connection - 18 mm wrench width for standard hex nuts - 7 mm wrench depth for deep-seated fasteners - Magnetic insert for secure fastener retention - Suitable for use with impact screwdrivers