Seco 02786789 Turning Insert CNMG431-FF2 TP1030 Cermet

Product Description

The SECO 02786789 is a CNMG-style cermet turning insert with a TiAlSiN multilayer PVD coating and a TP1030 manufacturer grade. It features an 80-degree diamond shape, a 1/2-inch inscribed circle, and a 1/64-inch corner radius with a honed cutting edge style. The insert carries a negative rake and neutral hand orientation, providing four usable cutting edges per insert. It is designed for general turning, facing, and boring operations on CNC lathes and turning centers. This insert is typically installed and qualified by machinists and CNC turning technicians working in production or job-shop environments.

This insert is suited for finishing and near-finishing passes on steel and stainless steel workpieces, corresponding to ISO material groups P and M, with material grades P10 and P15. The FF2 chip breaker geometry is optimized for controlled chip formation at lighter depths of cut, making it effective for tight-tolerance turning applications. It is compatible with standard CNMG insert pockets using clamp, pin, or lever lock holding methods. The insert conforms to both ANSI and ISO standards, with an ISO code of CNMG120404-FF2.

Key Features

• TiAlSiN multilayer PVD coating on cermet substrate for wear resistance on steel and stainless steel
• FF2 chip breaker geometry for controlled chip evacuation in finishing operations
• Four cutting edges per insert for extended tool life per unit
• Honed cutting edge for reduced micro-chipping at light depths of cut
• Compatible with clamp, pin, and lever lock toolholders
• Meets ANSI and ISO insert standards; ISO code CNMG120404-FF2

Compatibility

Designed for use in standard CNMG431 insert pockets with clamp, pin, or lever lock holding systems. Suitable for turning, facing, and boring operations on steel (ISO P) and stainless steel (ISO M) workpieces. Compatible with toolholders accepting CNMG-style inserts per ANSI and ISO specifications.

Installation Notes

Installation is performed by qualified machinists or CNC turning technicians. Always index or replace inserts with the machine fully stopped and the spindle locked. Use the appropriate torque wrench for the clamping screw per the toolholder manufacturer guidance to avoid seat damage. Inspect the insert pocket and seating surface for chips or debris before seating a new insert.