[Size] - 3/8" square drive, 6mm square socket, 30mm (1.18") total length.. [CR-MO Steel] - Forged with chrome-molybdenum steel provides excellent durability and strength with every impact movement; black phosphate finish for extra protection against rust and corrosion.. [Design] - The Rounded corners prevent fastener wear and increase torque on fasteners by placing force on fastener's flat sides, rather than fastener corners.. [Pin Hole] - Individual pinhole base design adds extra security by placing in a locking pin for stability when exerting strong torque motion.. [Widely Use] - For disassembly and tightening of hexagon head bolts and nuts, especially suitable for requiring large torque and narrow space. The product has no insulation properties and is not suitable for electrical environments..
