[Size] - 3/8' square drive socket, T50 torx bit, 2.36-inch (60mm) total length. [Torque Strength] - Chrome-molybdenum steel has excellent durability and strength with every impact movement; black phosphate coating for extra protection against rust and corrosion. [Chamfered Design] - Chamfered ends insert smoothly into fastener head, reducing wear. [Pin Hole] - Individual pinhole base design adds extra security by placing in a locking pin for stability when exerting strong torque motion. [Widely Used] - Use 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.