Kennametal 1799410 Threading Insert 20 Tpi KC5025 Carbide

Product Description

The KENNAMETAL 1799410 is a carbide threading insert designed for external thread cutting on UN-standard threads at 20 TPI. Part of the Top Notch series, this insert carries a TiAlN finish applied via PVD coating, which improves wear resistance and tool life during high-speed threading operations. The insert is right-hand orientation with a 60-degree included angle and a corner radius of 0.0063 inches. Manufactured to grade KC5025 and rated for material grades C2 and C6, it is suited for use on CNC lathes and turning centers. Machinists and tooling specialists install this type of insert during threaded-part production runs.

This insert is used in external threading applications where UN thread form at 20 TPI is required. The Top Notch series is a common platform in production machining environments, covering both light finishing passes and general-purpose threading on ferrous and non-ferrous materials within the C2 and C6 material grade range. Typical applications include threading on shafts, bolts, and cylindrical workpieces on CNC turning equipment. The PVD TiAlN coating extends insert life in demanding cutting conditions and helps maintain edge sharpness across extended runs.

Key Features

• External UN threading at 20 TPI with a 60-degree included angle
• TiAlN finish via PVD coating for improved wear resistance and thermal stability
• KC5025 carbide grade, rated for C2 and C6 material grades
• Right-hand insert orientation for standard lathe and turning center setups
• Top Notch series platform for consistent toolholder compatibility
• Corner radius of 0.0063 inches for thread form accuracy

Compatibility

Designed for use with KENNAMETAL Top Notch series threading toolholders that accept NTC3 style inserts. Confirm toolholder insert size and clamping style before installation.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before seating or replacing the insert. Use the appropriate torque wrench and clamping screw specified for the Top Notch toolholder to avoid insert movement or damage to the seating pocket. Verify thread form and pitch with a thread gauge after the first pass before running production quantities.