Kennametal 2599525 Grooving Insert NG3125 KC5025 Carbide

Product Description

The KENNAMETAL 2599525 is a solid carbide grooving insert designed for precision external grooving and parting operations on CNC lathes and turning centers. It carries the KC5025 manufacturer grade with a PVD-applied TiAlN coating, giving it strong wear resistance and thermal stability in interrupted cuts and steel applications. The insert features a left-hand orientation, a 3.18 mm cutting width, and a maximum depth of cut of 3.81 mm. It belongs to the Top Notch series, a common platform in production turning environments. Machinists and CNC tool setters working in job shops, production facilities, and aerospace or general metalworking operations are the primary users of this insert.

This insert is suited for grooving, undercutting, and parting on lathes machining steel, alloy steel, and similar materials within the C2 and C6 material grade range. The neutral rake geometry and 55-degree included angle make it appropriate for moderate-feed turning applications. The Top Notch series toolholder system is a widely used platform in production turning, and this insert is sized at NG3125 for direct use in compatible Top Notch toolholders. It is sold individually per package with a minimum order quantity of 5 units.

Key Features

• KC5025 grade with PVD TiAlN coating for extended tool life in steel and alloy steel
• 3.18 mm cutting width with a maximum depth of cut of 3.81 mm
• Left-hand insert orientation for specific toolholder configurations
• Neutral rake geometry with a 0.19 mm corner radius for controlled chip formation
• Top Notch series platform, widely used in CNC production turning
• 55-degree included angle and 3-degree lead angle for stable grooving entry

Compatibility

Designed for use with Top Notch series toolholders accepting NG3125 style inserts. Compatible with material grades C2 and C6 workpiece materials. Verify toolholder insert pocket specifications before installation.

Installation Notes

Insert installation should be performed by a qualified CNC machinist or tool setter with the machine powered off and the spindle locked. Use the appropriate torque wrench and clamping screw specified by the toolholder manufacturer to secure the insert — do not overtighten by hand. Inspect the insert pocket and clamping mechanism for debris or wear before seating the new insert. Follow the machine tool manufacturer and cutting tool manufacturer feed and speed recommendations for the workpiece material and insert grade.