Check the listing for details. 1/2-14 NPTF threaded plug GUAGE. Condition: Used. Listed at 35.00 USD. The product is a 1/2-14 NPTF threaded plug gauge, used in the metalworking industry for measuring the size of tapped holes. This gauge is designed to ensure accurate fits and prevent leaks in threaded connections, particularly in pipes and fittings. It is a reliable tool for professionals in CNC machining, metalworking, and manufacturing processes to guarantee precise measurements and quality workmanship.