[Torque Strength] - Chrome-molybdenum steel has excellent durability and strength with every impact movement; black phosphate coating for extra protection against rust and corrosion.
[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.