This AFF toque limiting socket allows you to apply accurate and specific torque to automobile wheel fasteners. It prevents overtightening and/or uneven tightening of lug nuts. This socket prevents damage to wheels and brake rotors. Its spring steel design stops turning once the preset torque is reached. Each socket is laser printed with AFF name, model number, and toque rating. This socket features specifically designed chrome molybdenum spring steel flexes at preset torque ratings. Use this torque limiting socket with 1/2" drive impact wrenches rated at 250 ft/lbs at 90-100 PSI. Established in 1963, American Forge & Foundry (AFF) has provided value through our selection of highest-quality, "forge tough" heavy-duty and automotive service equipment. From our extensive inventory of parts to the hundreds of service depots available nationwide our experienced team is committed to ensuring that the AFF brand stands for durability, safety, and customer care.