Kennametal 4176048 Grooving Insert NG3078 KCU10 Carbide Altin

Product Description

The KENNAMETAL 4176048 is a solid carbide grooving insert designed for precision external grooving and turning operations on CNC lathes and turning centers. Manufactured to the NG3078 insert style in the Top Notch series, it carries a KCU10 grade designation and features a Physical Vapor Deposition (PVD) AlTiN coating for improved wear resistance and thermal stability at the cutting edge. The insert delivers a cutting width of 1.98 mm and a maximum depth of cut of 2.39 mm, making it well suited for shallow-to-medium groove profiles. It is installed and changed by machinists and CNC operators working in metal-cutting production environments.

This insert is intended for right-hand grooving applications on CNC lathes and turning centers where precise groove geometry and consistent tool life are required. The Top Notch series is a widely used platform for external grooving, and the KCU10 carbide grade with AlTiN coating is suited for cutting steels and materials in the C3 and C4 material grade range. The clamp-style holding method provides secure insert retention during interrupted or continuous grooving cuts. Typical applications include groove-and-part-off operations and profile turning in production and job-shop settings.

Key Features

• Solid carbide construction with PVD AlTiN coating for enhanced wear and heat resistance
• 1.98 mm cutting width with a maximum depth of cut of 2.39 mm
• KCU10 manufacturer grade rated for C3 and C4 material grades
• Right-hand insert orientation for standard external grooving setups
• Clamp-type insert holding method for secure, repeatable positioning
• Corner radius of 0.19 mm for defined groove-edge geometry
• Part of the Top Notch series, a common platform for external grooving toolholders

Compatibility

Designed as an OEM-style replacement insert for Top Notch series external grooving toolholders accepting NG3078 insert size. MSC/Manufacturer cross-reference number is NG3078R/L.

Installation Notes

Installation is performed by a qualified machinist or CNC operator. Ensure the machine spindle is stopped and all axis motion is locked out before indexing or replacing the insert. Use the appropriate clamp screw and torx or hex key as specified by the toolholder manufacturer — do not substitute fasteners. Verify correct insert orientation (right-hand) matches the toolholder and programmed cutting direction before resuming operation.