Made in the USA, Lang Tools (2583) 7-Pc. Wheel Stud Thread Restorer Kit will repair or renew damaged threads on wheel studs. Packaged in a blow molded case for protection and easy use. Dies are highly tempered for strength and durability, and are 6-pt. shaped for use with a socket or wrench. Sizes include: 7/16"-20, 1/2"-20, 9/16"-18, M12-1.25, M12-1.50, M12-1.75, M14-1.50.