Kennametal 5988788 Grooving Insert KCU25 6.35mm Carbide

Product Description

The KENNAMETAL 5988788 is a solid carbide grooving insert from the Beyond Evolution series, designed for precision external grooving and parting operations on CNC lathes and turning centers. The insert carries a KCU25 grade designation with a PVD-applied AlTiN coating, providing heat resistance and edge durability at elevated cutting speeds. The GUP chip breaker geometry delivers a positive 27-degree rake angle, promoting efficient chip evacuation and reducing cutting forces. With a 6.35 mm cutting width and a maximum depth of cut of 4 mm, this insert suits moderate grooving work in steel and similar workpiece materials. Installation and tool changes are handled by machinists and CNC operators in production and job-shop environments.

The 5988788 is suited for grooving operations on CNC turning equipment where consistent chip control and dimensional repeatability are required. The neutral hand orientation makes it adaptable across standard grooving toolholders compatible with the EG-P insert style. The Beyond Evolution series targets high-productivity applications in production machining environments where tool life consistency and surface finish quality directly affect cycle time and part quality. This insert is sold individually but carries a minimum order quantity of 10 units.

Key Features

• KCU25 solid carbide grade with PVD AlTiN coating for extended edge life at elevated temperatures
• GUP chip breaker geometry with positive 27-degree rake for efficient chip evacuation
• 6.35 mm cutting width with a maximum depth of cut of 4 mm
• 0.40 mm corner radius for controlled groove geometry and reduced stress concentration
• Neutral hand orientation compatible with standard EG-P style toolholders
• Beyond Evolution series — engineered for high-productivity CNC turning applications

Compatibility

Designed for use with toolholders accepting the EG-P insert style. Consult the Beyond Evolution series toolholder documentation to confirm shank size and clamping compatibility before ordering.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Power down and lock out the machine spindle before seating or replacing the insert. Verify that the toolholder pocket is clean and free of chips or debris before seating the insert to ensure proper clamping and accurate insert presentation. Do not exceed the rated maximum depth of cut for this insert style, as overloading can cause premature edge failure or insert fracture.