Kennametal 1795788 Threading Insert NT3LK KC5025 Tialn

Product Description

The KENNAMETAL 1795788 is a carbide threading insert in the Top Notch series, designed for both internal and external thread cutting operations. Carrying the NT3LK style designation with a KC5025 grade substrate, this insert features a PVD-applied TiAlN finish that supports consistent performance across a range of threading applications. It is a left-hand insert with a 60-degree included angle and partial profile thread form, making it suited for controlled threading passes in ferrous and non-ferrous materials. The corner radius measures 0.17 mm (0.0067 inches), and the insert thickness is 4.95 mm (0.1949 inches). Installation and tool changes are performed by qualified machinists on CNC lathes or manual threading setups.

This insert handles external thread pitches from 1.25 to 4.00 mm (6 to 20 TPI) and internal thread pitches from 2.00 to 5.00 mm (5 to 12 TPI). It is appropriate for production threading in machining environments where consistent thread form and dimensional accuracy are required. The K chipbreaker geometry helps manage chip flow during threading passes. This insert is sold individually but must be ordered in multiples of 5.

Key Features

• KC5025 carbide grade with PVD TiAlN coating for wear resistance
• Left-hand, partial profile 60-degree thread form for internal and external applications
• External pitch range: 1.25 to 4.00 mm (6 to 20 TPI)
• Internal pitch range: 2.00 to 5.00 mm (5 to 12 TPI)
• K chipbreaker geometry for controlled chip evacuation
• Insert size 3 in the Top Notch series for compatibility with corresponding toolholders

Compatibility

Designed for use with Top Notch series threading toolholders that accept NT insert style, size 3. Confirm toolholder specification before ordering to ensure proper seating and clamping.

Installation Notes

This insert is installed by a qualified machinist or toolroom technician. Power down and lock out the machine before changing inserts. Use the correct torque driver or clamping screw specified for the Top Notch toolholder to secure the insert without over-tightening. Inspect the insert pocket and clamping hardware for wear or damage before each insert change.