Kennametal 1796332 Threading Insert 20 Tpi Carbide Tialn

Product Description

The KENNAMETAL 1796332 is a carbide external threading insert designed for precision thread-cutting operations on CNC lathes and turning centers. Manufactured in the NJF3008R20 style with a KC5025 grade carbide substrate, this insert features a PVD-applied TiAlN coating that improves wear resistance and extends tool life in demanding cutting conditions. It cuts external UNJ-profile threads at 20 TPI with a 60-degree included angle, making it suitable for aerospace and high-precision mechanical assemblies where UNJ thread form tolerances are required. Right-hand cutting orientation is standard. The insert measures 0.1949 inches thick and weighs approximately 0.0207 pounds.

This insert is used in external threading applications on turning centers and CNC lathes where UNJ thread standards are specified. The UNJ thread form, with its controlled root radius, is common in aerospace, defense, and high-fatigue structural applications. The Top Notch series design provides secure, repeatable seating in compatible Top Notch toolholders. Machinists and toolroom operators working in aerospace manufacturing, precision machining shops, and contract manufacturing environments are the primary users of this insert.

Key Features

• Carbide substrate with PVD TiAlN coating for elevated wear resistance and thermal stability
• KC5025 manufacturer grade carbide optimized for threading in a range of metallic workpiece materials (C2/C6 material grade)
• 20 TPI external UNJ thread form with 60-degree included angle
• Right-hand cutting orientation
• Corner radius of 0.0079 inches (0.2 mm) for accurate UNJ root profile
• Top Notch series insert size 3008 for use in matching Top Notch toolholder systems

Compatibility

Designed for use in KENNAMETAL Top Notch series threading toolholders that accept NJF-style inserts in size 3008. Confirm toolholder insert pocket geometry and size designation before installation.

Installation Notes

Threading insert installation and replacement should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before changing inserts. Seat the insert fully and evenly in the toolholder pocket and torque the clamping screw to the toolholder manufacturer specification. Inspect the insert seating and clamp integrity before resuming cutting operations.