The RIDGID 36475 12-R 1/2″ – 2″ NPT Exposed Ratchet Threader Set is a high-quality pipe threading tool set designed for professional use. With thread sizes ranging from 1/2″ to 2″, this set includes a pipe die and die head for creating right-hand NPT threads. Manufactured in the United States by RIDGID, a trusted brand in the industry, this threader set is a reliable and durable option for efficient pipe threading tasks. The 1/2”, 1 1/4”, 1 1/2” and 2” have never been used. The 3/4” and 1” were used once.