This 3/8" square drive socket with a 12 mm wrench width and 30 mm length offers precise handling of hexagonal nuts, ideal for professional mechanical and industrial tasks. Its compact size ensures access in confined spaces, while magnetic properties enhance ease of use with impact screwdrivers. Key features: - Connection size: 3/8" square drive - Wrench width: 12 mm, wrench depth: 5 mm - Length: 30 mm for tight space accessibility - Magnetic for secure nut retention - Suitable for impact screwdriver use with durable surface protection