Irwin IR7405 Hex Pipe Rethreading Die 1/2-14 Npt

Product Description

The IRWIN IR7405 is a hex-style rethreading pipe die designed to cut and restore 1/2-14 NPT external pipe threads. Made from high carbon steel (HCS), this die delivers reliable performance on damaged or corroded pipe ends that need to be brought back to spec. It fits standard hex die stocks used by plumbers, pipefitters, and mechanical contractors working on threaded pipe assemblies in residential and commercial installations. The NPT taper thread form ensures a pressure-tight fit when properly made up with compatible fittings.

This die is suited for field rethreading of 1/2-inch nominal pipe where threads have been damaged by corrosion, impact, or improper handling. Typical applications include repair work on galvanized, black iron, and similar pipe in gas, water, and general mechanical systems. Plumbers and pipefitters use this die during maintenance and retrofit jobs where replacing the full pipe run is not practical. It is sold as a single die unit.

Key Features

• 1/2-14 NPT thread specification for standard tapered pipe thread cutting and restoration
• High carbon steel (HCS) construction for durability through repeated use
• Hex body profile fits standard die stock handles and wrenches
• Rethreading design allows restoration of damaged external pipe threads in the field
• Sold individually — one die per unit of measure

Compatibility

Designed as an OEM-style replacement hex pipe die for use with standard die stocks that accept 1/2-14 NPT hex dies in plumbing and pipefitting applications.

Installation Notes

This die is installed and operated by a licensed plumber or pipefitter using a compatible hex die stock. Before rethreading any pipe in a live system, isolate and depressurize the line and verify the pipe is clean and free of burrs. Apply cutting oil to the pipe and die before starting thread cuts to extend die life and improve thread quality. Work completed on gas piping must comply with applicable local codes and IFGC requirements.

Technical Specifications

• Thread Size: 1/2-14 NPT
• Thread Form: NPT (National Pipe Taper)
• Die Style: Hex Die
• Die Type: Rethreading
• Material: High Carbon Steel (HCS)
• Sold As: Each
• UPC: 042526074059

Standard Information

• Brand: IRWIN
• Manufacturer Part Number: IR7405