American Forge & Foundry Torque Limiting Socket, 1/2" Drive, 21MM, 80 Ft/Lbs.

Prevents overtightening or uneven tightening of lug nuts. reduces risk of wheel and brake rotor damage. spring steel design stops turning once preset torque is reached. solid one piece construction. laser etched with size and torque rating for easy identification. 1/2" drive 21mm 80 ft/lb torque limiting socket. 1 year limited warranty.