Kennametal 1796397 Threading Insert 24 Tpi Left Hand KC5010

Product Description

The KENNAMETAL 1796397 is a left-hand external threading insert in the Top Notch series, designed for single-point threading operations on CNC lathes and turning centers. The insert carries a KC5010 carbide grade with a PVD-applied TiAlN finish, suited for threading UNJ-standard external profiles at 24 threads per inch (TPI). The 60-degree included angle conforms to standard thread form geometry. With a tip-to-top height of 0.1409 inches and a corner radius of 0.0068 inches, this insert delivers controlled thread form accuracy on aerospace and precision-grade workpieces where UNJ thread roots are required.

This insert is intended for external threading applications where UNJ thread standards apply, most commonly in aerospace, defense, and high-cycle fatigue environments. The left-hand orientation makes it appropriate for reverse-thread or left-hand-thread feature machining. It fits Kennametal Top Notch series toolholders designed for the NJF insert style and 3007 insert size. Machinists and CNC programmers working in job shops, aerospace production facilities, or precision contract machining operations will find this insert suited to demanding threading passes on steel, stainless, and compatible workpiece materials rated C3 and C4.

Key Features

• KC5010 carbide grade with PVD TiAlN coating for wear resistance and edge integrity
• Left-hand external threading at 24 TPI to UNJ thread standard
• 60-degree included angle for standard thread form geometry
• Corner radius of 0.0068 inches for precise thread root definition
• Top Notch series NJF insert style in size 3007 for secure toolholder seating
• Insert thickness of 0.1949 inches for rigid support during threading passes

Compatibility

Designed for use with Kennametal Top Notch series toolholders accepting the NJF insert style in size 3007. Suitable for C3 and C4 material grades per the insert attribute data provided.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or removing inserts. Use the appropriate torx or clamping key specified for the Top Notch toolholder to secure the insert without overtightening the clamp screw. Inspect the insert pocket for chips or debris before seating to ensure proper insert contact and thread form repeatability.