Kennametal 5988814 Grooving Insert KCU25 Solid Carbide

Product Description

The KENNAMETAL 5988814 is a solid carbide grooving insert designed for precision external grooving and parting operations on CNC lathes and turning centers. Built to the ER-P insert style with a GUP chip breaker geometry, it carries a KCU25 grade designation and an AlTiN coating applied via PVD process. The insert delivers a 4.76 mm cutting width and a maximum depth of cut of 2.62 mm, making it well suited for fine-tolerance grooves in steel and other materials. It is installed and replaced by CNC machinists and tooling technicians in production and job-shop environments.

This insert fits within the KENNAMETAL Beyond Evolution series, a line engineered for consistent chip control and extended tool life in turning applications. It is intended for metric-measurement tooling setups and carries a neutral hand orientation, making it compatible with standard neutral-hand grooving toolholders. Typical applications include external groove cutting, undercutting, and plunge operations on medium to small-diameter workpieces in production turning environments.

Key Features

• Solid carbide substrate with AlTiN PVD coating for wear resistance and thermal stability
• KCU25 manufacturer grade optimized for grooving in steel materials
• GUP chip breaker geometry with positive 10-degree rake angle for controlled chip evacuation
• 4.76 mm cutting width with full corner radius of 2.38 mm for smooth groove profiles
• Maximum depth of cut range of 2.00 mm to 3.00 mm for precise grooving control
• Neutral hand orientation compatible with standard neutral grooving toolholder systems

Compatibility

Designed for use with ER-P style neutral-hand grooving toolholders accepting insert seat size 4 within the KENNAMETAL Beyond Evolution series tooling system.

Installation Notes

Installation should be performed by qualified CNC machinists or tooling technicians with the machine in a full stop and lockout-tagout procedures applied before changing inserts. Seat the insert firmly into the toolholder pocket and torque the clamping screw to the toolholder manufacturer specification. Inspect the insert seat for chips or debris before seating to ensure proper contact and runout accuracy. Replace the insert at first sign of edge wear to avoid workpiece damage or dimensional deviation.