Kennametal 4034779 Grooving Insert G0400GMP KCU10 Carbide

Product Description

The KENNAMETAL 4034779 is a solid carbide grooving insert in the Series A4 lineup, designed for external grooving and parting operations on CNC lathes and turning centers. This insert carries the G0400GMP chip breaker geometry and KCU10 grade, finished with a PVD-applied AlTiN coating for thermal resistance and edge durability in demanding turning applications. The neutral hand orientation and positive rake geometry make it suited to a wide range of ferrous and non-ferrous workpieces. It delivers a 4 mm cutting width and a maximum depth of cut of 3.51 mm, covering the depth range of 3 mm to 4 mm typical in groove-turning and cutoff work. Machining professionals and toolroom technicians select this insert for consistent chip control and wear resistance.

This grooving insert is intended for use on CNC turning equipment in production and job-shop environments. It is appropriate for both residential shop operations and larger industrial machining facilities. The GMP chip breaker geometry is engineered for controlled chip evacuation during grooving, parting, and profiling cuts. The insert size designation is 0400, and the full series catalog reference is A4G0400M04P08GMP. The 90-degree included angle and 0.79 mm corner radius support clean groove walls and repeatable dimensional accuracy. Typical users include CNC machinists, tool-and-die technicians, and production turning specialists.

Key Features

• KCU10 carbide grade with PVD AlTiN coating for heat resistance and extended tool life
• GMP chip breaker geometry for positive rake and effective chip evacuation in grooving applications
• 4 mm cutting width with maximum depth of cut of 3.51 mm
• Neutral hand orientation compatible with standard grooving toolholders
• 0.79 mm corner radius supports accurate groove wall geometry
• Multi-use insert rated for grooving, parting, and profiling operations

Compatibility

Designed for use with Series A4 grooving toolholders accepting insert seat size 4. Full catalog reference number is A4G0400M04P08GMP. Confirm toolholder seat and clamping specifications before installation.

Installation Notes

Installation is performed by CNC machinists or toolroom technicians. Power down and fully de-energize the machine before changing inserts. Use the appropriate torx or hex key specified by the toolholder manufacturer to seat the insert securely against the pocket; do not overtighten. Inspect the insert seat for chips or debris before seating a new insert to ensure proper contact and dimensional accuracy.