Kennametal 4034806 Grooving Insert KCU10 Altin 3.18mm

Product Description

The KENNAMETAL 4034806 is a solid carbide grooving insert designed for precision external and internal grooving operations on CNC lathes and turning centers. It carries the KCU10 manufacturer grade with a PVD-applied AlTiN coating, delivering wear resistance and thermal stability across a range of workpiece materials. The insert features a neutral hand orientation, a 3.18 mm cutting width, and a maximum depth of cut of 3.40 mm. The GMN chip breaker geometry controls chip flow during shallow to medium-depth grooving passes. Machinists and CNC operators install this insert as part of the Kennametal Series A4 grooving system.

This insert is suited for production turning environments where consistent groove geometry and surface finish are required. The 90-degree included angle and 0.20 mm corner radius make it appropriate for sharp-shouldered grooves with minimal burr formation. It is applicable to grooving operations in the 3.00 mm to 4.00 mm depth-of-cut range, covering common snap ring grooves, O-ring grooves, and undercut profiles in both ferrous and non-ferrous materials. The multi-use designation means the insert can be indexed within compatible toolholders to extend usable life per unit.

Key Features

• KCU10 solid carbide grade with PVD AlTiN coating for thermal and abrasion resistance
• 3.18 mm cutting width with a maximum depth of cut of 3.40 mm
• GMN chip breaker geometry for controlled chip evacuation during grooving
• Neutral hand orientation for use in standard right-hand and left-hand toolholders where applicable
• 0.20 mm corner radius produces sharp-shouldered groove profiles
• Series A4 designation for use with compatible Kennametal A4 grooving toolholders

Compatibility

Designed for use with Kennametal Series A4 grooving toolholders. Catalog reference number A4G125I03P05GMN. Consult the Kennametal toolholder compatibility guide to confirm correct holder pairing before installation.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and the machine is in a safe lockout state before changing inserts. Seat the insert firmly and squarely in the pocket and tighten the clamping screw to the toolholder manufacturer's specified torque using a calibrated torque wrench. Verify insert seating and runout before resuming cutting operations.