Kennametal 1796429 Threading Insert KC5010 20 Tpi

Product Description

The KENNAMETAL 1796429 is a carbide threading insert designed for external thread-turning operations on CNC lathes and turning centers. Finished with a TiAlN PVD coating, this insert delivers heat resistance and extended tool life during high-speed threading passes. It cuts at 20 TPI to the UNJ thread standard and carries the KC5010 manufacturer grade, placing it in the C3/C4 material grade range for machining hardened and abrasion-resistant workpiece materials. The NJK insert style seats into compatible Top Notch toolholders. Tip-to-top height measures 0.1409 inches and thickness is 0.1949 inches, making precise seating and repeatability straightforward for the machinist.

This insert is intended for external threading applications in production machining environments, including aerospace, defense, and precision manufacturing where UNJ thread forms are specified. The right-hand cutting configuration suits standard lathe rotation. The 60-degree included angle is consistent with unified thread-form geometry. The Top Notch series system provides a secure, indexable insert platform that minimizes setup time between passes. It is suitable for turning centers running ferrous and hardened workpiece materials where TiAlN coating performance is required.

Key Features

• KC5010 carbide grade with TiAlN PVD finish for heat and wear resistance
• 20 TPI external threading to UNJ thread standard
• NJK insert style in the Top Notch series for secure indexable seating
• 60-degree included angle matches unified thread-form geometry
• Right-hand cutting orientation for standard lathe rotation
• Corner radius of 0.0079 inches (0.2 mm) for precise thread root form

Compatibility

Designed for use with Top Notch series toolholders that accept the NJK insert style and size 3008 inserts. Verify toolholder seat geometry and insert size designation before installation.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before indexing or replacing the insert. Use the appropriate torque wrench and clamp screw specified by the toolholder manufacturer - do not overtighten, as this can crack the carbide substrate. Inspect the insert seat and clamp for wear or debris before seating the new insert.