Kennametal 4109768 Grooving Insert NG3047 KCU25 Carbide Altin

Product Description

The KENNAMETAL 4109768 is a solid carbide grooving insert in the Top Notch series, designed for precision external grooving and turning operations on CNC lathes and turning centers. Manufactured to an NG insert style with a KCU25 grade and a PVD-applied AlTiN coating, this insert delivers a cutting width of 1.19 mm and a maximum depth of cut of 1.91 mm. The AlTiN finish enhances heat resistance and tool life in demanding cutting applications. This insert is intended for use by machinists and CNC operators working in production and job-shop environments.

This insert is suited for grooving operations in residential shop and industrial manufacturing settings where precise, repeatable groove geometry is required. The right-hand orientation makes it compatible with standard right-hand Top Notch toolholders. The 55-degree included angle and 0.19 mm corner radius support controlled chip flow in ferrous and non-ferrous materials rated at C2 and C6 material grades. It is a metric-measurement insert with an insert size designation of 3047 and a cutting height of 8.74 mm.

Key Features

• KCU25 carbide grade with PVD AlTiN coating for extended tool life in high-temperature cuts
• 1.19 mm cutting width for narrow, precise groove profiles
• 1.91 mm maximum depth of cut within a 0.00 to 2.00 mm operational range
• Right-hand insert orientation for use with compatible Top Notch clamp-style toolholders
• 0.19 mm corner radius with a 55-degree included angle for controlled chip geometry
• Solid carbide construction — no brazed joint, no insert backing material

Compatibility

Designed for use with Top Notch series clamp-style toolholders accepting NG-style grooving inserts. MSC and manufacturer cross-reference number is NG3047R/L.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before seating or replacing the insert. Use the appropriate Top Notch clamp and torque the clamping screw according to the toolholder manufacturer specifications. Inspect the insert seat and clamping mechanism for chips or debris before each installation to ensure proper seating and prevent insert rocking.