Kennametal 4034810 Grooving Insert KCU10 Solid Carbide

Product Description

The KENNAMETAL 4034810 is a solid carbide grooving insert in the G250GMN geometry, designed for external grooving and cutoff operations on CNC lathes and turning centers. It carries the KCU10 manufacturer grade with a PVD-applied AlTiN coating, delivering heat resistance and extended tool life in demanding cutting applications. The insert features a 0.25 inch (6.35 mm) cutting width, a maximum depth of cut of 0.187 inch (4.75 mm), and a neutral hand orientation. It belongs to the Series A4 product family. Machinists and CNC turning specialists install this insert into compatible A4-series grooving toolholders for precision groove-depth control on steel and alloy workpieces.

This insert is suited for grooving operations in general machining environments where consistent groove width and controlled chip evacuation are required. The GMN chip breaker geometry is optimized for producing manageable chips during moderate to aggressive grooving passes. The 90-degree included angle and 0.41 mm (0.016 inch) corner radius support accurate groove profiling. It is appropriate for both production-volume and job-shop turning applications across a range of metallic workpiece materials corresponding to C3 and C4 material grades.

Key Features

• Solid carbide substrate with PVD AlTiN coating for thermal and wear resistance
• 0.25 inch (6.35 mm) cutting width for precise groove dimensioning
• Maximum depth of cut of 0.187 inch (4.75 mm); effective range 0.150 to 0.200 inch
• GMN chip breaker geometry for controlled chip formation during grooving
• Neutral hand orientation — compatible with both left- and right-hand setups
• Multi-use tool designation supports grooving and light turning applications

Compatibility

Designed for use with Series A4 grooving toolholders. Manufacturer catalog reference number A4G250I06P1GMN. Suitable for workpiece material grades C3 and C4.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and locked out before indexing or replacing inserts. Seat the insert firmly and evenly in the toolholder pocket and verify torque per the toolholder manufacturer specification. Confirm proper coolant flow direction before resuming cutting operations.