Kennametal 5988780 Grooving Insert KCU25 3mm Beyond Evolution

Product Description

The KENNAMETAL 5988780 is a solid carbide grooving insert designed for precision grooving and parting operations on CNC lathes and turning centers. It carries the ER-P insert style with a GUP chip breaker geometry and is coated with AlTiN via a PVD coating process. The KCU25 grade delivers wear resistance suited to a range of workpiece materials. With a 3 mm cutting width and a maximum depth of cut of 2.15 mm, this insert targets shallow, controlled grooving passes. A full corner radius of 1.50 mm and a positive rake angle of 14 degrees reduce cutting forces and support clean chip evacuation. Machinists and toolroom professionals installing this insert will find it part of the Beyond Evolution series platform.

This insert is used in turning and grooving applications on CNC lathes where precise groove width control and consistent chip management are required. The neutral hand orientation makes it adaptable to standard grooving toolholders accepting the ER-P insert style. Typical applications include external grooving on shafts, pins, and hydraulic components in production or job shop environments. The metric insert size designation of 3 corresponds to the 3 mm cutting width, making it a direct fit for toolholders specified for that dimension within the Beyond Evolution series platform.

Key Features

• Solid carbide construction with PVD-applied AlTiN coating for heat and wear resistance
• KCU25 manufacturer grade optimized for consistent grooving performance
• GUP chip breaker geometry supports positive chip control in shallow grooves
• Full corner radius of 1.50 mm reduces stress concentration at groove base
• Positive rake angle of 14 degrees lowers cutting forces on the workpiece
• Neutral hand orientation fits standard ER-P grooving toolholders

Compatibility

Designed as an OEM-style replacement insert for toolholders accepting the ER-P insert style within the KENNAMETAL Beyond Evolution grooving system, sized for a 3 mm cutting width.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. The machine spindle must be fully stopped and the turret locked before seating or replacing inserts. Use the appropriate torx or insert-clamp key specified for the toolholder to secure the insert; do not over-torque the clamping screw. Inspect the insert pocket and clamping surfaces for chips or debris before seating the new insert to ensure proper contact and edge alignment.