Description

The SECO 02615992 is a solid carbide turning insert designed for high-performance metal cutting in demanding machining applications. Carrying the CNMG 431-MF4 designation with a TS2500 manufacturer grade, this insert features a PVD-applied multilayer TiAlN and TiN coating optimized for extended tool life and thermal resistance. The insert geometry includes an 80-degree diamond shape, a neutral hand orientation, and a chamfered and honed cutting edge with a corner radius of 0.0157 inches. With four available cutting edges, it delivers consistent performance in boring, facing, and turning operations. It is installed by machinists and CNC operators working with precision turning equipment.

This insert is engineered primarily for superalloys and titanium workpiece materials, making it well suited for aerospace, medical, and energy sector machining. Secondary workpiece materials include steel, stainless steel, and cast iron. The MF4 chip breaker geometry supports controlled chip formation at moderate to light depths of cut. With a maximum depth of cut of 0.4921 inches and an inscribed circle of 0.5 inches, this insert fits standard CNMG toolholders and is appropriate for both production and job shop environments requiring reliable performance on difficult-to-machine alloys.

Key Features

TS2500 grade with PVD multilayer TiAlN and TiN coating for high heat and wear resistance
80-degree diamond insert shape with negative rake for strength on interrupted and continuous cuts
MF4 chip breaker geometry for controlled chip evacuation in superalloy and titanium applications
Four cutting edges maximize usable tool life per insert
Chamfered and honed cutting edge style for edge stability and reduced chipping
Compatible with clamp, pin, and lever lock holding methods for flexible toolholder use

Compatibility

Designed for use in CNMG-style turning toolholders that accept a 1/2-inch inscribed circle insert. ISO code CNMG120404-MF4 and industry standard number CNMG431-MF4 apply. Multi-use application includes boring, facing, and turning. Material grades S10 and S20 confirm suitability for superalloy and titanium primary applications, with secondary compatibility for steel, stainless steel, and cast iron workpieces.

Installation Notes

This insert is seated and secured by a licensed machinist or CNC technician using a clamp, pin, or lever lock toolholder system. Ensure the machine spindle is fully stopped and locked out before changing inserts. Verify correct seating in the pocket and confirm the clamping mechanism is fully engaged before resuming cuts. Follow the toolholder manufacturer’s torque and clamping specifications for the specific holder in use.