Size1/4" square drive socket, 3mm hex bit, 1.38-inch (35mm) total length.. Torque StrengthChrome-molybdenum steel has excellent durability and strength with every impact movement; black phosphate coating for extra protection against rust and corrosion.. Chamfered DesignChamfered ends insert smoothly into fastener head, reducing wear.. Pin HoleIndividual pinhole base design adds extra security by placing in a locking pin for stability when exerting strong torque motion.. Widely UsedUse with a ratchet to increase the speed of tightening square drive fasteners. And the product has no insulation properties and is not suitable for electrical environments..
