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The MILWAUKEE TOOL 49-16-5100 is a 2-inch NPT pipe threader die head designed for use with compatible pipe threading machines in plumbing and pipefitting applications. Built with a metal construction, this die head cuts National Pipe Taper threads and features an automatic opening mechanism that retracts the dies at the end of the thread cut, speeding up repetitive threading work and reducing operator fatigue. It is sized for 2-inch pipe and is intended for professional-grade, production-level threading on jobsites and in shops where consistency and durability are essential.
This die head is used in commercial and industrial plumbing, mechanical piping, and fire suppression installations where 2-inch threaded pipe connections are required. The automatic opening feature makes it well suited for high-volume threading tasks where the operator threads multiple sections of pipe in sequence. Licensed plumbers, pipefitters, and mechanical contractors are the primary installers. It is compatible with threading machines that accept this die head configuration.
Designed as an OEM-style die head for professional pipe threading machines that accept 2-inch die head assemblies with automatic opening. Consult Milwaukee Tool documentation to confirm compatibility with a specific threading machine model before installation.
Installation and use of pipe threading die heads should be performed by licensed plumbers or qualified pipefitters. Ensure the threading machine is fully powered off and unplugged before mounting or removing the die head. Apply appropriate threading oil during the cutting operation to protect the dies and produce clean threads. Verify that the completed thread meets applicable code requirements, such as those referenced in the International Plumbing Code, before making up the connection.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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