Irwin Hanson 4305 Round Adjustable Pipe Die 1/2-14 Npt

Product Description

The IRWIN HANSON 4305 is a round adjustable pipe die designed to cut 1/2-14 NPT right-hand external threads on pipe and pipe fittings. The die measures 2 inches in outside diameter and is machined from carbon steel for durability across repeated threading operations. The adjustable design allows the technician to fine-tune thread fit without swapping dies, making it a practical choice for production threading and field work alike. Plumbers, pipefitters, and mechanical contractors rely on this type of die when fabricating threaded pipe assemblies in ferrous and non-ferrous pipe stock.

This die is suited for residential and commercial plumbing, gas piping, and general pipe fabrication applications where NPT-standard threads are required. It is used with a compatible 2-inch OD round die stock holder. Typical installation scenarios include threading black iron pipe, galvanized pipe, or conduit on the bench or in the field. The right-hand thread direction conforms to standard NPT assembly practice for pressure-rated piping systems.

Key Features

• Cuts 1/2-14 NPT right-hand external threads
• Adjustable die allows thread fit tuning without changing tooling
• 2-inch outside diameter fits standard round die stocks
• Carbon steel construction for extended service life
• UNSPSC Code 27112805 for procurement and catalog classification

Compatibility

Designed for use in standard 2-inch OD round die stock holders compatible with NPT pipe threading applications.

Installation Notes

Threading operations should be performed by qualified plumbers or pipefitters familiar with NPT thread standards. Apply cutting oil liberally to the die and workpiece before and during threading to reduce heat and extend die life. Secure the pipe firmly in a pipe vise before engaging the die stock. Verify thread gauge fit after cutting before assembling into any pressure-rated system.