Kennametal 1796547 Threading Insert NAS3L6 KC5025 Carbide

Product Description

The KENNAMETAL 1796547 is a carbide threading insert designed for cutting Stub Acme thread profiles on both internal and external applications. Manufactured in the NAS insert style and belonging to the Top Notch series, this left-hand insert is finished with a TiAlN coating applied via PVD process, providing thermal and wear resistance during threading operations. It is designed for use at 6 threads per inch (TPI) with a 29-degree included angle. The insert measures 0.1949 inches in thickness and carries a tip-to-top height of 0.1492 inches, with a cutting tip width of 0.0654 inches. Assigned manufacturer grade KC5025 and material grade C2/C6, it is suited for demanding threading work where edge integrity and coating performance are critical.

This insert is intended for use in CNC lathes and manual turning applications where Stub Acme thread forms are required. The left-hand orientation makes it appropriate for threading operations where standard right-hand tooling is not suitable. Typical users include machinists, toolroom technicians, and production turning specialists working with both internal and external Stub Acme threads in metalworking environments. The Top Notch series holder system accepts this insert size 3 profile.

Key Features

• NAS insert style in the Top Notch series for secure clamping and repeatable positioning
• TiAlN finish applied via PVD process for improved wear resistance and thermal stability
• Left-hand cutting orientation for applications requiring reverse thread direction
• Cuts both internal and external Stub Acme thread profiles at 6 TPI
• 29-degree included angle matched to Stub Acme thread standard geometry
• Carbide substrate with KC5025 grade for consistent performance across C2 and C6 material classifications

Compatibility

Designed for use with Top Notch series threading toolholders accepting insert size 3. Suitable for both internal and external Stub Acme threading at 6 TPI in left-hand configurations.

Installation Notes

Threading inserts should be installed by qualified machinists with the machine powered down and all motion stopped before seating or replacing the insert. Verify the holder and clamping mechanism are free of chips and debris before seating the insert to ensure proper contact. Confirm the insert orientation matches the required thread hand before starting any cut. Follow the toolholder manufacturer guidelines for clamping torque and insert seating procedures.