Kennametal 4111090 Cutoff Insert KCU25 Carbide 2.2mm

Product Description

The KENNAMETAL 4111090 is a carbide cutoff insert in the A2 series, designed for parting and grooving operations on CNC lathes and turning centers. It carries the A2022R16CF00 form designation, indicating a 2.2 mm cutting width, a 16-degree right-hand lead angle, and a CF chipbreaker geometry. The insert is manufactured from carbide with a KCU25 grade and an AlTiN coating applied via PVD process, providing wear resistance and thermal stability at elevated cutting speeds. It uses a clamp-style holding method and is intended for single-end use. Machinists and CNC setup techs working in production turning environments install this insert as a direct replacement or standard consumable.

This insert is suited for parting, grooving, and cutoff applications in general-purpose turning. The CF chipbreaker geometry assists with chip control in a range of workpiece materials. The KCU25 carbide grade with AlTiN PVD coating is appropriate for machining steel, cast iron, and similar materials at moderate to high cutting speeds. The right-hand lead angle orientation and clamp-style seat make it compatible with A2-series toolholders that accept size 2 insert seats. This part is sold individually but carries a minimum order quantity of 10 units.

Key Features

• 2.2 mm cutting width for precise parting and grooving operations
• KCU25 carbide grade with AlTiN PVD coating for wear and heat resistance
• CF chipbreaker geometry for controlled chip evacuation
• 16-degree right-hand lead angle, A2 series designation
• Clamp-style insert holding method, single-end configuration
• Size 2 insert seat, compatible with A2-series toolholders

Compatibility

Designed for use with A2-series clamp-style cutoff and grooving toolholders that accept a size 2 insert seat and a right-hand lead angle configuration.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or removing inserts. Use the appropriate torx or hex key to secure the clamp to the specified feel of resistance — do not over-torque the clamp screw. Inspect the insert seat for chips or debris before seating a new insert to ensure proper contact and runout.