Kennametal 4114304 Grooving Insert G0305GMN KCU25 Carbide

Product Description

The KENNAMETAL 4114304 is a solid carbide grooving insert designed for precision external and internal grooving operations on CNC lathes and turning centers. It carries the KCU25 manufacturer grade with a Physical Vapor Deposition (PVD)-applied AlTiN coating, delivering heat and wear resistance in demanding cutting environments. The GMN chip breaker geometry supports chip control across a range of workpiece materials. With a 3.05 mm cutting width and a maximum depth of cut of 3.51 mm, this insert is suited for fine-tolerance groove profiles where dimensional consistency matters. Licensed machinists and CNC turning operators are the primary installers of this consumable tooling component.

This insert is used in metal-turning applications where precise groove geometry is required, including groove-and-part-off operations on ferrous and non-ferrous workpieces. It belongs to Kennametal Series A4 tooling and carries a neutral hand designation, making it compatible with straight-style grooving toolholders. The insert is suited for medium to finish turning conditions in both production and job-shop environments. Manufacturers catalog number A4G0305M03U04GMN can be used for cross-reference when sourcing or replacing this insert.

Key Features

• KCU25 grade solid carbide substrate with PVD AlTiN coating for extended tool life
• 3.05 mm cutting width with a maximum depth of cut of 3.51 mm
• GMN chip breaker for reliable chip control in grooving operations
• Neutral hand orientation for use with straight grooving toolholders
• 0.41 mm corner radius supports controlled groove edge geometry
• Series A4 designation for direct toolholder compatibility reference
• Multi-use rated insert suitable for repeat groove cycles

Compatibility

Designed for use with Series A4 grooving toolholders accepting the G0305GMN insert style. Manufacturer catalog number A4G0305M03U04GMN may be used for toolholder and system cross-reference. Material grade ratings of C2 and C6 indicate suitability across cast iron and general-purpose steel applications.

Installation Notes

Installation of this insert is performed by a qualified machinist or CNC tooling technician. The machine spindle must be stopped and locked out before seating or replacing any insert. Use the appropriate torx or hex key as specified by the toolholder manufacturer when securing the insert clamp — do not exceed the clamping torque range stated in the toolholder documentation. Inspect the insert pocket and clamping surfaces for chips or debris before seating a new insert to ensure proper registration and cutting accuracy.