Kennametal 1818825 Grooving Insert NG3110 KC5025 Carbide

Product Description

The KENNAMETAL 1818825 is a solid carbide grooving insert designed for precision external grooving and parting operations on CNC lathes and turning centers. Manufactured to the NG3110 insert size specification in the Top Notch series, it carries a TiAlN coating applied via PVD process for improved wear resistance and tool life at elevated cutting temperatures. The insert is configured for left-hand cutting with a neutral rake geometry, a cutting width of 2.79 mm (0.1098 inches), and a maximum depth of cut of 3.81 mm (0.15 inches). Grade KC5025 targets a broad range of steel, stainless, and cast iron applications. Machinists and CNC lathe operators install this insert as a direct replacement in compatible Top Notch toolholders.

This insert fits turning and grooving setups requiring controlled slot width and depth on ferrous and non-ferrous workpieces. The NG3110 profile and 55-degree included angle make it well suited to tight-tolerance grooving in production and job-shop environments. A corner radius of 0.32 mm (0.0126 inches) provides a controlled edge break that reduces stress concentration at groove corners. The insert does not feature a full radius profile, making it appropriate for flat-bottom groove applications. Typical users include CNC machinists and toolroom operators working with manual or programmed turning equipment.

Key Features

• Solid carbide construction with PVD TiAlN coating for extended wear resistance
• Left-hand cutting orientation, neutral rake geometry
• Cutting width of 2.79 mm (0.1098 inches) for consistent groove sizing
• Maximum depth of cut of 3.81 mm (0.15 inches), range 3.00 mm to 4.00 mm
• Corner radius of 0.32 mm for controlled edge geometry at groove bottom
• KC5025 grade covers a broad material application range (C2 and C6 material grades)
• Top Notch series insert style for secure clamping in compatible toolholders

Compatibility

Designed for use in Top Notch series toolholders that accept the NG3110 insert style. Verify toolholder seat geometry and clamping configuration before installation. No additional compatible model numbers were specified in the available product data.

Installation Notes

Insert replacement should be performed by a qualified CNC machinist or toolroom technician with the machine in a fully stopped and locked-out state per applicable machine safety procedures. Use the correct torque wrench and insert key specified by the toolholder manufacturer when seating the insert clamp — do not overtighten or use improvised tools. Inspect the toolholder seat and clamp for wear or debris before installing a new insert. Confirm insert orientation (left-hand) matches the intended cutting direction before resuming operation.