Kennametal 1790189 Carbide Cutoff Insert KC5025 2.2mm

Product Description

The KENNAMETAL 1790189 is a carbide cutoff insert designed for parting and grooving operations on CNC lathes and turning centers. It belongs to the A2 insert series and carries the KC5025 manufacturer grade, a PVD-applied TiAlN coating engineered for wear resistance in steel and cast iron cutting applications. The insert delivers a 2.2 mm (0.0866 inch) cutting width and a 4.77 mm (0.1878 inch) cutting height. A 10-degree left-hand lead angle and a 2-degree relief angle are built into the geometry, and the CF chipbreaker configuration promotes controlled chip evacuation during deep cutoff passes. Toolroom machinists and CNC operators working in production turning environments install this insert using a clamp-style holding method.

This insert fits grooving and cutoff toolholders compatible with the A2 insert series and size code 022 seat. It is suited for left-hand lead angle configurations in applications where the tool approaches the workpiece from the left. Typical use cases include parting-off bar stock, shallow grooving, and finish-groove operations on ferrous and non-ferrous materials. The KC5025 grade with TiAlN PVD coating performs well in moderate to high cutting speed ranges on steel and similar materials. Each package contains one insert; the minimum order quantity is 5 units.

Key Features

• KC5025 carbide grade with PVD-applied TiAlN coating for extended tool life in steel cutting
• 2.2 mm cutting width (0.0866 inch) provides precise groove and cutoff dimensions
• 10-degree left-hand lead angle with 2-degree relief angle for controlled engagement
• CF chipbreaker geometry supports chip control in continuous cutoff passes
• Clamp-style insert holding for secure, repeatable indexing
• A2 series, insert seat size 2 for straightforward toolholder compatibility

Compatibility

Designed for use in A2-series clamp-style cutoff and grooving toolholders that accept insert seat size 2 with a left-hand lead angle configuration. Verify toolholder insert seat specifications before installation.

Installation Notes

This insert is installed and indexed by machining professionals or toolroom technicians following the toolholder manufacturer instructions for clamp-style grooving systems. Power down and lock out the machine spindle before changing inserts. Use the correct torque on the clamping screw as specified by the toolholder manufacturer documentation — do not over-tighten or use impact tools on the clamp screw. Inspect the insert seat and clamping components for wear or debris before seating the new insert.