The NPT/UN Thread ID Kit Complete from Fittings Unlimited Inc is an essential tool for identifying and measuring thread types. This comprehensive kit includes a variety of gauges and tools designed to accurately determine NPT and UN thread specifications. Made from durable materials, this kit is built to withstand regular use in both professional and DIY settings. It is an invaluable resource for engineers, technicians, and hobbyists alike, ensuring precise measurements and compatibility in various applications. The kit is compact and easy to store, making it a convenient addition to any workshop.