Kennametal 1818459 Grooving Insert NR3031K KC5025 Carbide

Product Description

The KENNAMETAL 1818459 is a solid carbide grooving insert designed for precision grooving and parting operations on CNC lathes and turning centers. Designated style NR3031K in the Top Notch series, it features a TiAlN coating applied via PVD process, delivering wear resistance and thermal stability at elevated cutting speeds. The insert is left-hand oriented with a 1.58 mm cutting width, a maximum depth of cut of 2.39 mm, and a full corner radius of 0.79 mm. A positive rake angle of 10 degrees and K-style chip breaker geometry promote controlled chip evacuation in a range of workpiece materials. This insert is installed by machinists and CNC operators in production turning environments.

This insert suits metric grooving applications on lathes and turning centers where tight groove widths and controlled depths are required. The Top Notch series tooling system is common in production shops running medium to high-volume turning operations. The insert size designation is 3031 and it is rated for a maximum depth of cut range of 2.00 mm to 3.00 mm, making it appropriate for shallow to moderate-depth external or face grooving passes. Material grades C2 and C6 indicate suitability for a range of ferrous and non-ferrous machining applications.

Key Features

• Solid carbide substrate with TiAlN PVD coating for wear and heat resistance
• Left-hand insert orientation for designated toolholder configurations
• 1.58 mm cutting width with full corner radius of 0.79 mm for consistent groove geometry
• Positive 10-degree rake angle reduces cutting forces and improves chip flow
• K chip breaker style promotes reliable chip breaking in turning applications
• Manufacturer grade KC5025 suited for a broad range of workpiece materials

Compatibility

Designed for use with KENNAMETAL Top Notch series toolholders that accept NR-style grooving inserts in size 3031. Confirm toolholder insert pocket specifications before installation.

Installation Notes

This insert is installed by qualified machinists or CNC operators. Power down and lock out the machine spindle before changing inserts. Use the correct torque wrench and insert clamp per the toolholder manufacturer guidelines — do not overtighten the clamp screw with standard hand tools. Inspect the insert pocket and clamp for damage or debris before seating the new insert to ensure proper seating and safe operation.