Kennametal 1799502 Threading Insert KC5025 Carbide 11 Tpi

Product Description

The KENNAMETAL 1799502 is a carbide threading insert designed for internal Whitworth thread cutting operations. Part of the Top Notch series, it carries the NWC3L11I designation and is manufactured to the KC5025 grade with a TiAlN finish applied via PVD coating process. This insert is configured for left-hand internal threading at 11 TPI with a 55-degree included angle, making it a precise, application-specific tool for machinists and CNC lathe operators working on Whitworth-standard threaded bores. The insert measures 0.1949 inches in thickness with a corner radius of 0.0118 inches.

This insert is suited for internal threading applications on Whitworth-standard workpieces in production and job-shop machining environments. The KC5025 carbide grade with PVD TiAlN coating is typically selected for threading ferrous and alloy materials where wear resistance and edge retention are required. It fits Top Notch series toolholders designed for size 3 inserts. This is a left-hand configuration and should be selected accordingly when threading left-hand internal Whitworth features.

Key Features

• KC5025 carbide grade with TiAlN finish for wear resistance in ferrous threading
• PVD coating process for tight dimensional control and sharp edge retention
• Left-hand internal threading configuration at 11 TPI
• 55-degree included angle for Whitworth thread standard compliance
• Top Notch series size 3 insert geometry
• Corner radius of 0.0118 inches for precise thread form

Compatibility

Designed for use with Top Notch series toolholders that accept size 3 threading inserts. This insert is specific to left-hand internal Whitworth threads at 11 TPI and is not interchangeable with right-hand or other thread-standard configurations.

Installation Notes

This insert is installed by a qualified machinist or CNC operator into a compatible Top Notch series threading toolholder. Ensure the machine spindle is stopped and locked out before changing inserts. Seat the insert fully and verify clamping torque per the toolholder manufacturer specifications. Confirm left-hand designation matches the programmed threading cycle before initiating a cut.