Kennametal 1796425 Threading Insert 18 Tpi KC5010

Product Description

The KENNAMETAL 1796425 is a carbide threading insert designed for external thread cutting on CNC lathes and turning centers. Running in the Top Notch series with a KC5010 manufacturer grade, this insert produces UNJ-standard external threads at 18 TPI with a 60-degree included angle. The PVD-applied TiAlN finish delivers heat and wear resistance suited for interrupted cuts and harder work materials. At a tip-to-top height of 0.1409 inches and a corner radius of 0.0087 inches, the geometry is optimized for precise thread form on aerospace and high-tolerance components. Licensed machinists and CNC setup techs are the primary installers.

This insert seats in Top Notch-compatible right-hand external threading toolholders. It is well suited for aerospace-grade applications requiring UNJ thread form, including actuator rods, fasteners, and precision shaft threading where root radius control is critical. The NJK insert style and 3009 insert size determine the correct toolholder pocket. Verify toolholder compatibility before ordering.

Key Features

• Carbide substrate with PVD TiAlN coating for wear and heat resistance
• 18 TPI external thread pitch, UNJ thread standard
• 60-degree included angle for standard V-thread form
• Right-hand cutting orientation
• Corner radius of 0.0087 inches (0.22 mm) for controlled root geometry
• Top Notch series insert style NJK, insert size 3009

Compatibility

Designed for use with Top Notch series right-hand external threading toolholders that accept the NJK insert style in size 3009. Confirm toolholder pocket specifications before installation.

Installation Notes

Threading inserts of this type are installed and changed by machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or removing the insert. Use the correct torque wrench and insert screw specified by the toolholder manufacturer - do not overtighten the clamping screw. Inspect the insert pocket for chips or debris before seating to avoid microfracture at the cutting edge.