Kennametal 1796532 Threading Insert NAS3L8 KC5010 Carbide

Product Description

The KENNAMETAL 1796532 is a carbide threading insert designed for cutting Stub Acme threads in both internal and external applications. Manufactured in the NAS insert style and offered in the Top Notch series, this left-hand insert carries the KC5010 manufacturer grade with a PVD-applied TiAlN finish. The TiAlN coating delivers thermal resistance and wear protection suited to demanding thread-cutting operations. At 0.1949 inches thick and a cutting tip width of 0.0476 inches, this insert is precision-ground to hold thread geometry at 8 TPI with a 29-degree included angle. Licensed machinists and toolroom operators working on Stub Acme thread profiles will find this insert a direct-fit solution for Top Notch compatible toolholders.

This insert is intended for machining Stub Acme thread forms on lathes and threading centers where left-hand thread orientation is required. It suits both internal and external thread applications, making it a versatile option for shops producing lead screws, power transmission components, and similar Stub Acme-threaded parts. The KC5010 grade is a PVD-coated carbide targeted at threading operations where edge stability and coating adhesion are priorities. Install in any compatible Top Notch series toolholder as specified by the toolholder manufacturer.

Key Features

• NAS insert style in the Top Notch series for secure, repeatable seating in compatible toolholders
• KC5010 carbide grade with PVD TiAlN finish for wear resistance and thermal stability during threading
• Left-hand orientation for Stub Acme thread cutting at 8 TPI with a 29-degree included angle
• Suitable for both internal and external thread applications
• Insert size 3 with a tip-to-top height of 0.1492 inches and cutting tip width of 0.0476 inches
• Material grades C3 and C4 carbide classification

Compatibility

Designed for use with Top Notch series toolholders that accept NAS-style size 3 threading inserts. Verify toolholder specifications before installation to confirm insert style and size compatibility.

Installation Notes

This insert is installed and replaced by qualified machinists or toolroom personnel. Power down and lock out the machine before changing inserts. Seat the insert fully and securely in the toolholder pocket before resuming cutting operations. Do not use damaged or chipped inserts, as compromised cutting geometry will affect thread accuracy and can create hazardous conditions.