Ridgid High-Speed RH Manual Threader Pipe and Bolt Die, NPT, 1" - 11 1/2 TPI: * Professional-grade cutting tool ensures precision threading * Convenient size stamp makes correct die selection easy * High-carbon steel provides reliable performance * Tool Type: SAE Die * Applicable Materials: Brass, Bronze, Copper, Iron, Plastic, Steel, Zinc * Pipe Capacity: 1" * Thread - TPI or Pitch: 11 1/2 TPI