Kennametal 4111102 Cutoff Insert KCU25 Carbide 3 Mm

Product Description

The KENNAMETAL 4111102 is a carbide cutoff insert designed for parting and grooving operations on CNC lathes and turning centers. It carries the KCU25 manufacturer grade with an AlTiN coating, making it well-suited for interrupted cuts and a broad range of workpiece materials including steel and cast iron. The insert features a 3.00 mm (0.1180 inch) cutting width, a 6-degree right-hand lead angle, and a 2-degree relief angle. The CR chipbreaker geometry promotes chip control during cutoff operations. Machinists and toolroom professionals working in production turning environments are the primary installers of this insert.

This insert fits A2 series cutoff toolholders and is intended for use in cutoff and parting applications on lathes, turning centers, and multi-spindle machines. The right-hand lead angle configuration directs cutting forces appropriately for standard right-hand turning setups. The AlTiN coating extends tool life under elevated cutting temperatures, making this insert a practical choice for high-speed or dry-cutting conditions where heat generation is a concern.

Key Features

• KCU25 carbide grade with AlTiN coating for extended wear resistance and thermal stability
• 3.00 mm (0.1180 inch) cutting width for precise parting and grooving operations
• 6-degree right-hand lead angle for controlled chip evacuation and reduced cutting forces
• 2-degree relief angle minimizes rubbing on the cut face
• CR chipbreaker geometry promotes consistent chip breaking in cutoff applications
• A2 series compatibility for direct use in standard A2 cutoff toolholders

Compatibility

Designed for use with A2 series cutoff and parting toolholders. Verify toolholder pocket geometry and insert seat dimensions against the A2 series specifications before installation.

Installation Notes

Installation is performed by machinists and toolroom technicians. Ensure the machine spindle is fully stopped and all motion has ceased before indexing or replacing inserts. Use the appropriate torx or hex key to seat the insert securely in the toolholder pocket without overtightening the clamping screw. Follow the toolholder manufacturer torque guidelines and confirm insert seating before resuming cuts.