Kennametal 1795790 Threading Insert KC5025 Carbide Tialn

Product Description

The KENNAMETAL 1795790 is a carbide threading insert in the Top Notch series, designed for both internal and external thread cutting operations. It carries the NT4LK insert style and is manufactured in grade KC5025 with a PVD-applied TiAlN finish, which provides thermal resistance and extended edge life in demanding threading applications. The insert produces partial profile 60-degree threads and is configured for left-hand cutting. With an external pitch range of 1.25 to 6.25 mm (4 to 20 TPI) and an internal pitch range of 2.00 to 6.25 mm (4 to 12 TPI), it covers a broad range of thread sizes in a single insert style. Machinists and toolroom technicians use this insert on CNC lathes and manual turning centers for precision threading in ferrous and non-ferrous materials.

This insert is suited for shops running both production and job-lot threading operations where consistent thread form and tool life are priorities. The KC5025 grade with TiAlN coating performs well in medium to higher cutting speed ranges on materials aligned with C2 and C6 material grades. The K chipbreaker geometry is paired with a corner radius of 0.17 mm (0.0067 inches), making it appropriate for threading applications where controlled chip evacuation is required. It installs in Top Notch series toolholders designed to accept NT-style inserts.

Key Features

• KC5025 carbide grade with PVD TiAlN coating for extended wear resistance
• Partial profile 60-degree thread form for internal and external threading
• Left-hand cutting configuration
• External pitch range: 1.25 to 6.25 mm (4 to 20 TPI)
• Internal pitch range: 2.00 to 6.25 mm (4 to 12 TPI)
• K chipbreaker with 0.17 mm corner radius for controlled chip flow
• Top Notch series compatibility for secure, repeatable insert indexing

Compatibility

Designed for use in Top Notch series toolholders that accept NT-style threading inserts with insert size 4.

Installation Notes

This insert is installed and indexed by qualified machinists or toolroom technicians. Power down and de-energize the machine spindle before changing or indexing any insert. Use the appropriate Top Notch clamping hardware and ensure the insert seat is clean and free of chips before seating the new insert. Follow the toolholder manufacturer's clamping procedure to ensure proper insert retention during threading passes.