Kennametal 1796530 Threading Insert NAS3R8 KC5010 Carbide

Product Description

The KENNAMETAL 1796530 is a carbide threading insert designed for Stub Acme thread forms at 8 TPI with a 29-degree included angle. Part of the Top Notch series, it features a TiAlN finish applied via PVD coating, which improves wear resistance and tool life in demanding threading operations. The insert is right-hand oriented and suited for both internal and external threading applications. Insert size is 3, with a tip-to-top height of 0.1492 inches and a cutting tip width of 0.0476 inches. Machinists and CNC operators working in metalworking and precision manufacturing environments install this insert into compatible Top Notch toolholders.

This insert is appropriate for threading Stub Acme profiles on ferrous and non-ferrous workpieces across both internal and external thread configurations. It is rated for material grades C3 and C4, making it suitable for a range of steels and cast irons. Typical applications include production threading on CNC lathes and manual turning centers where consistent thread form accuracy and insert repeatability are required. The NAS insert style conforms to industry-standard geometry for straightforward indexing and replacement.

Key Features

• Carbide substrate with TiAlN PVD coating for extended wear resistance
• Stub Acme thread standard at 8 TPI with 29-degree included angle
• Right-hand cut, compatible with both internal and external thread operations
• Insert size 3 with tip-to-top height of 0.1492 inches and cutting tip width of 0.0476 inches
• NAS insert style for consistent indexing in Top Notch series toolholders
• Material grade rating C3 and C4 for versatile workpiece compatibility

Compatibility

Designed for use with Top Notch series toolholders accepting NAS-style threading inserts. Confirm toolholder seat size and insert size 3 compatibility before installation.

Installation Notes

Threading inserts should be installed and indexed by a qualified machinist or toolroom technician. Power down and lock out the machine before changing or indexing any insert. Use the appropriate torque wrench and manufacturer-specified clamping hardware when seating the insert to avoid seat damage. Inspect the toolholder pocket for wear or debris before each insert change.