Sandvik Coromant 5724366 Turning Insert CNMG431-MF 2025

Product Description

The SANDVIK COROMANT 5724366 is a CNMG431-MF 2025 series turning insert designed for precision lathe and turning center operations. Built from solid carbide and coated via CVD process with a TiCN, Al2O3, and TiN multilayer stack, this insert delivers wear resistance and thermal stability in demanding cuts. The 80-degree diamond shape (insert shape code C) provides strong cutting geometry, while the MF chip breaker is engineered for controlled chip formation on stainless steel and similar materials. With a 0.5000-inch inscribed circle, a 0.4920-inch length, and a 1/64-inch corner radius, this insert fits standard CNMG toolholders and is specified by machinists and CNC programmers in production turning environments.

This insert is rated for primary use on stainless steel (ISO material code M), making it a go-to choice for shops running 300 and 400 series stainless, duplex grades, and similar work-hardening alloys. It carries a neutral hand designation, suiting both OD and face turning applications. The T-Max P series positions it for medium finishing to light roughing passes where edge security and surface finish both matter. It is sold individually per package but requires a minimum order of 10 pieces, making it appropriate for production replenishment and tooling room stocking.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for wear and crater resistance
• MF chip breaker geometry optimized for stainless steel and ISO M materials
• 80-degree diamond insert shape with 4 usable cutting edges per insert
• 1/64-inch (0.0156-inch) corner radius for semi-finishing surface quality
• Clamp and pin insert holding method for secure seating in CNMG toolholders
• ISO designation CNMG 12 04 04-MF 2025 for direct cross-reference to global tooling catalogs

Compatibility

Designed for use in CNMG-style toolholders accepting a 1/2-inch inscribed circle insert with clamp and pin retention. ISO code CNMG 12 04 04-MF 2025 allows direct cross-reference to compatible toolholder systems. Verify pocket geometry and seating tolerance before installation.

Installation Notes

Turning inserts are installed by qualified machinists or CNC setup technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the correct torque driver or clamping screw specified by the toolholder manufacturer to seat the insert without cracking the carbide substrate. Inspect the insert pocket and locating pin for wear or debris before seating a new insert.