Kennametal 1796122 Threading Insert NT3RCK KC5025

Product Description

The KENNAMETAL 1796122 is a carbide threading insert in the Top Notch series, designed for both internal and external thread cutting operations on CNC lathes and threading toolholders. Manufactured to style NT3RCK with a KC5025 grade substrate, the insert features a PVD-applied TiAlN finish that improves wear resistance and thermal stability during high-speed threading passes. The partial profile 60-degree included angle suits a range of unified and metric thread forms. At 0.0207 pounds, this is a precision indexable insert intended for use by machinists and toolroom professionals working in production or job-shop environments.

This insert handles external pitch ranges of 2.50 to 4.00 mm, equivalent to 6 to 11 TPI, and internal pitches at 4.00 mm or 6 TPI. It is suited for threading ferrous and non-ferrous workpiece materials classified under material grades C2 and C6. The right-hand cutting geometry and K-style chipbreaker make it appropriate for standard right-hand thread production on turning centers and engine lathes. Typical applications include production threading of fasteners, fittings, couplings, and threaded shafts in manufacturing and machining environments.

Key Features

• KC5025 carbide grade with PVD TiAlN coating for extended tool life in threading operations
• Partial profile 60-degree thread form covers a broad range of unified and metric thread pitches
• External pitch range: 2.50 to 4.00 mm (6 to 11 TPI); internal pitch: 4.00 mm (6 TPI)
• Right-hand insert orientation with K-style chipbreaker for controlled chip flow
• Top Notch series compatibility allows use in the corresponding KENNAMETAL toolholder system
• Insert size 3 with a corner radius of 0.34 mm (0.0134 inches) for accurate thread root form

Compatibility

Designed as an OEM-style indexable replacement insert for KENNAMETAL Top Notch series threading toolholders accepting NT-style size 3 inserts.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Power down and lock out the machine spindle before indexing or replacing inserts. Seat the insert firmly against the toolholder pocket using the appropriate torx or clamp screw specified for the toolholder; do not overtighten by feel alone. Inspect the insert seat and clamping components for wear or debris before seating a new insert to ensure repeatable tool geometry.