Kennametal 1799511 Threading Insert ND3038R KC5025 Carbide

Product Description

The KENNAMETAL 1799511 is a carbide threading insert in the Top Notch series, designed for precision thread cutting on internal and external profiles. It carries the ND insert style designation and the KC5025 manufacturer grade with a TiAlN finish applied via PVD coating process. The insert is engineered for API Rotary Shoulder Connection threading at 4 TPI with a 60-degree included angle. Right-hand cut orientation and a corner radius of 0.0354 inches make it suitable for demanding threading operations in oil and gas and heavy industrial machining environments. Licensed machinists and CNC operators are the primary users of this insert.

This insert is built for API Rotary Shoulder Connection threading applications, covering both internal and external thread types. It is commonly used in CNC lathes and turning centers where repeatable thread form accuracy is critical, particularly in oilfield tubular and drill collar production. The Top Notch series is a known platform in threading insert tooling, and this insert fits that tooling system for high-volume or precision threading passes.

Key Features

• KC5025 grade carbide with PVD-applied TiAlN coating for wear resistance in threading applications
• ND insert style in the Top Notch series for use with compatible Top Notch toolholders
• 4 TPI internal pitch with 60-degree included angle for API Rotary Shoulder Connection profiles
• Cuts both internal and external thread forms in a right-hand orientation
• Corner radius of 0.0354 inches (0.9 mm) for defined thread root geometry
• Material grades C2 and C6 covering a broad range of workpiece materials

Compatibility

Designed for use with Top Notch series threading toolholders accepting ND-style inserts. Suitable for API Rotary Shoulder Connection threading on both internal and external workpiece features.

Installation Notes

This insert is installed by a qualified machinist or CNC tooling technician. Power down and lock out the machine before seating or replacing the insert. Ensure the toolholder pocket is clean and free of debris before installation to maintain proper insert seating and thread form accuracy. Follow the toolholder manufacturer torque guidance for the clamping screw.