Kennametal 1818073 Grooving Insert NG2125K KC5025 Carbide

Product Description

The KENNAMETAL 1818073 is a solid carbide grooving insert designed for precision grooving operations on CNC lathes and turning centers. Manufactured to NG2125K geometry in the Top Notch series, it carries a TiAlN coating applied via PVD process, which improves wear resistance and thermal stability during interrupted cuts and continuous grooving passes. The insert provides a cutting width of 3.18 mm (0.1252 inches) and a maximum depth of cut of 2.79 mm (0.1098 inches) with a positive rake angle of 10 degrees and a corner radius of 0.19 mm (0.0075 inches). It is configured for right-hand operation and is sold individually per package with a minimum order quantity of 5 units.

This insert is suited for external grooving, recessing, and parting applications in production and job-shop turning environments. The KC5025 grade with K chip breaker geometry is appropriate for machining steel and alloy steel workpieces where controlled chip formation and edge stability are required. It fits Top Notch series grooving toolholders that accept the NG2125 insert size. Installation is performed by qualified machinists or CNC lathe operators in industrial and manufacturing settings.

Key Features

• Solid carbide substrate in manufacturer grade KC5025 with PVD-applied TiAlN coating for thermal and wear resistance
• Cutting width of 3.18 mm (0.1252 inches) with maximum depth of cut of 2.79 mm (0.1098 inches)
• Positive rake angle of 10 degrees reduces cutting forces and improves chip evacuation
• K chip breaker geometry promotes controlled chip formation during grooving passes
• Corner radius of 0.19 mm (0.0075 inches) for defined edge geometry on groove walls
• Right-hand configuration; compatible with Top Notch series NG2125 toolholders

Compatibility

Designed for use in Top Notch series grooving toolholders accepting NG2125 insert size. The MSC and manufacturer cross-reference number for this insert is NG2125R/LK.

Installation Notes

Installation and changeout should be performed by a qualified machinist with the machine spindle fully stopped and the machine locked out per facility safety procedures. Use the appropriate torque wrench and insert clamping hardware specified for the Top Notch toolholder to seat the insert correctly. Inspect the toolholder pocket for chips or debris before seating a new insert. Do not exceed the maximum depth of cut specification for the insert grade and geometry in use.