Kennametal 1799418 Threading Insert 32 Tpi External Un

Product Description

The KENNAMETAL 1799418 is a carbide threading insert designed for external UN thread cutting at 32 threads per inch (TPI). It carries a TiAlN finish applied via PVD coating process, which provides thermal resistance and edge wear protection during threading operations. The insert uses a 60-degree included angle standard for UN thread form and is configured for right-hand cutting. With a tip-to-top height of 0.1480 inches and a thickness of 0.1949 inches, this insert fits within the Top Notch series tooling system. It is installed and indexed by machinists and CNC operators working with precision threaded components.

This insert is suited for external threading applications on lathes and turning centers where UN-standard threads at 32 TPI are required. The KC5025 grade carbide with TiAlN coating makes it appropriate for a range of metalcutting conditions, including interrupted cuts and production threading on steel and similar materials. The Top Notch series designation indicates compatibility with Kennametal Top Notch-style threading toolholders designed for this insert geometry and size class.

Key Features

• 32 TPI external UN thread form with 60-degree included angle
• TiAlN PVD finish coating for extended tool life and heat resistance
• KC5025 carbide grade rated for C2 and C6 material classifications
• Right-hand cutting configuration
• Corner radius of 0.0039 inches for controlled thread root geometry
• Top Notch series insert style for use with compatible toolholders

Compatibility

Designed for use with Kennametal Top Notch series threading toolholders accepting NTC3-style inserts. Verify toolholder insert seat size and clamping style before installation.

Installation Notes

Installation is performed by qualified machinists on lathes or CNC turning centers. Power down and lock out the machine before indexing or replacing the insert. Use the appropriate torque wrench and insert seating tool to secure the insert without over-tightening the clamping screw. Confirm thread form and pitch with a thread gauge after the first pass before running full production.