The RIDGID 36900 1” Complete Die Head with 1 Set of 00-R Alloy Dies is a high-quality pipe tool designed for threading pipes with a 1-inch inner diameter. This die head, along with the included pipe die, is perfect for creating right-hand threads in Sch 40 pipes. Made by the trusted brand RIDGID in the United States, this unit is compliant with California Prop 65 Warning standards and follows NPT thread standards for precise and reliable results.