Kennametal 4111082 Cutoff Insert KCU25 Carbide 2.2mm

Product Description

The KENNAMETAL 4111082 is a single-end carbide cutoff insert designed for grooving and parting-off operations on CNC lathes and turning centers. It belongs to the A2 series and carries the KCU25 manufacturer grade, a PVD-applied AlTiN coating that provides thermal resistance and extended tool life in demanding cutting environments. The insert features a 2.2 mm cutting width (0.0870 inch), a neutral lead angle of 0 degrees, a 2-degree relief angle, and a CF chipbreaker geometry engineered to control chip flow during parting and grooving cuts. Machinists and CNC operators working in production turning environments rely on this insert for consistent, repeatable performance on grooving applications.

This insert is suited for grooving, cutoff, and parting operations in both production and job-shop turning environments. The CF chipbreaker geometry makes it appropriate for applications where chip control is critical, particularly in medium to finishing cuts. The KCU25 grade with AlTiN PVD coating is well-matched to ferrous materials and applications requiring wear resistance at elevated cutting temperatures. It is sold as a single insert per package with a minimum order quantity of 10 units.

Key Features

• A2 series single-end cutoff insert with 2.2 mm (0.0870 inch) cutting width
• KCU25 carbide grade with PVD-applied AlTiN coating for wear and thermal resistance
• CF chipbreaker geometry for controlled chip flow in grooving and parting operations
• Neutral lead angle (0 degrees) with 2-degree relief angle for balanced cutting forces
• C2 and C6 material grade classifications for broad application coverage
• Full radius: No — flat-bottomed groove profile

Compatibility

Designed as an OEM-style replacement insert for A2 series cutoff and grooving toolholders accepting size code 2 inserts. Confirm toolholder series and insert seat dimensions before installation.

Installation Notes

Cutoff and grooving inserts are installed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and locked out before indexing or replacing inserts. Use the appropriate torx or hex key torque wrench as specified by the toolholder manufacturer when seating the insert clamp — do not overtighten by hand. Verify insert seating and clamp contact before resuming cutting operations.