Kennametal 1796510 Threading Insert NA3R6 KC5025 Carbide

Product Description

The KENNAMETAL 1796510 is a carbide threading insert in the Top Notch series, designed for cutting Acme threads in both internal and external applications. Manufactured to the NA3R6 style with a KC5025 grade carbide substrate, it features a TiAlN finish applied via PVD coating for improved wear resistance and tool life in demanding threading operations. The insert is right-hand orientation, runs at 6 TPI, and carries a 29-degree included angle consistent with Acme thread geometry. It is installed by machinists and CNC lathe operators in production and job-shop environments.

This insert is suited for Acme threading operations on lathes and turning centers in both production and maintenance machining environments. The Top Notch series is a common insert platform used on dedicated threading toolholders in residential shop and commercial manufacturing settings. The right-hand configuration makes it appropriate for standard right-hand thread cutting on external diameters and internal bores. The KC5025 grade with TiAlN coating performs well in a range of steel and alloy materials typically encountered in Acme-threaded applications such as lead screws, power screws, and jigs.

Key Features

• KC5025 carbide grade with PVD-applied TiAlN coating for extended tool life
• NA3R6 insert style, right-hand orientation, 6 TPI internal pitch
• 29-degree included angle for Acme thread standard geometry
• Cuts both internal and external Acme threads
• Top Notch series platform for compatibility with Top Notch threading toolholders
• Insert size 3 with a corner radius of 0.057 inches (1.44 mm cutting tip width)

Compatibility

Designed for use in Top Notch series threading toolholders that accept size 3 inserts. Specific toolholder compatibility should be confirmed against the Top Notch series toolholder documentation prior to ordering.

Installation Notes

Installation is performed by a machinist or CNC operator on a lathe or turning center. Power down and lock out the machine before seating or replacing the insert. Use the appropriate torx or clamping key specified for the Top Notch toolholder to secure the insert without over-torquing the clamping screw. Confirm thread pitch and insert hand orientation match the programmed toolpath before initiating a cut.