Kennametal 1114319 Grooving Insert NG3078K KC730 Carbide

Product Description

The KENNAMETAL 1114319 is a solid carbide grooving insert in the Top Notch series, designed for precision external grooving and parting operations on CNC lathes and turning centers. Manufactured to the NG3078K insert style with a KC730 grade substrate and PVD-applied TiN coating, it delivers consistent performance in steel, cast iron, and non-ferrous materials covered under material grades C2, C3, and C4. The insert features a 1.98 mm cutting width and a maximum depth of cut of 2.39 mm, making it suitable for shallow-to-medium groove profiles. A positive rake angle of 10 degrees reduces cutting forces and improves chip control in tight-tolerance applications. Installed by machinists and CNC operators in production and job-shop environments.

This insert is suited for external grooving, recessing, and light parting operations on bar-fed or chuck-work turning centers. The K chip breaker geometry promotes efficient chip evacuation in continuous or interrupted cuts. Right-hand orientation means it is configured for standard left-to-right feed direction on conventional lathe setups. The Top Notch series tooling system is a widely used platform in production turning for its quick-change indexing capability. Typical applications include groove profiling on ferrous and non-ferrous workpieces in both high-volume and prototype machining contexts.

Key Features

• KC730 grade solid carbide substrate with PVD TiN coating for wear resistance and edge retention
• 1.98 mm cutting width with a maximum depth of cut range of 2.00 to 3.00 mm
• Positive rake angle of 10 degrees reduces cutting forces and improves chip flow
• K chip breaker geometry promotes controlled chip evacuation in grooving operations
• Corner radius of 0.19 mm (0.0075 inches) provides a fine profile transition at groove edges
• Right-hand insert orientation for standard lathe feed direction

Compatibility

Designed as an OEM-style replacement and standard-fit insert for Top Notch series grooving toolholders accepting NG-style inserts. MSC and manufacturer cross-reference number NG3078R/LK.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator with the machine in a powered-down, locked-out state before indexing or replacing inserts. Use the appropriate Top Notch series toolholder and clamping screw torqued per the toolholder manufacturer specifications. Inspect the insert seat and clamping mechanism for debris or damage before seating the insert. Do not exceed the rated maximum depth of cut for this insert size during operation.