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The KENNAMETAL 1796443 is a carbide threading insert designed for external thread cutting operations on CNC lathes and turning centers. Manufactured in the NJK insert style within the Top Notch series, it carries the KC5010 manufacturer grade with a PVD-applied TiAlN finish for wear resistance and thermal stability at the cutting edge. This insert produces right-hand external UNJ threads at 24 threads per inch (TPI) with an included angle of 60 degrees. It measures 0.1949 inches thick with a tip-to-top height of 0.1409 inches and a corner radius of 0.0068 inches. Machinists and CNC operators working in aerospace and precision machining applications install this insert.
This insert is suited for external threading on materials falling within the C3 and C4 material grade classifications, which typically correspond to cast irons and heat-resistant or titanium alloys. It is used in production turning environments where controlled thread form and edge consistency are required. The Top Notch insert system is a quick-change toolholder platform, and this insert seats into compatible Top Notch holders designed for the NJK insert style and 3007 insert size. Applications include aerospace-standard UNJ thread forms on shaft and fastener components where a controlled root radius is required by specification.
Designed for use with KENNAMETAL Top Notch series toolholders accepting the NJK insert style in the 3007 insert size. Compatible with C3 and C4 material grades as specified in the product attributes.
This insert is installed by a machinist or CNC operator into a compatible Top Notch series threading toolholder. Ensure the machine spindle is fully stopped and the toolholder is secured before seating or replacing the insert. Verify insert orientation for right-hand thread cutting before resuming operations. Follow the toolholder manufacturer torque and clamping guidelines for the Top Notch insert pocket.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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