Sandvik Coromant 5756466 Turning Insert WNMG431-MF 2025

Product Description

The SANDVIK COROMANT 5756466 is a WNMG431-MF 2025 grade indexable turning insert designed for metal-cutting lathe operations on CNC and manual turning centers. It features a trigon (80-degree included angle) insert shape with a solid carbide substrate and a CVD-applied multilayer coating of TiCN, Al2O3, and TiN. With 6 cutting edges, a 0.5000-inch inscribed circle, and a 1/64-inch (0.0156-inch) corner radius, this insert is sized for medium to light finishing passes. The MF chip breaker geometry is optimized for stainless steel workpiece materials, controlling chip flow and reducing built-up edge during continuous cuts. Machinists and CNC operators working with ISO material group M applications will find this insert well matched to their tooling systems.

This insert is intended for turning operations on stainless steel and similar ISO M-class workpiece materials. It fits toolholders designed for WNMG-style inserts and is held in place using a clamp-and-pin method. The T-Max P series designation indicates compatibility with SANDVIK COROMANT T-Max P toolholder platforms used widely in production and job-shop turning environments. The neutral hand orientation makes it suitable for both external and select internal turning applications depending on holder geometry.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for wear resistance and thermal stability
• MF chip breaker geometry optimized for stainless steel (ISO M) turning
• 6 indexable cutting edges per insert for extended tooling economy
• Clamp and pin insert holding method for secure seating in T-Max P toolholders
• Neutral hand orientation for flexible toolholder pairing
• 80-degree trigon shape (WNMG) with 0-degree relief angle (clearance code N)

Compatibility

Designed for use in SANDVIK COROMANT T-Max P series toolholders accepting WNMG-style inserts with a clamp-and-pin holding method. ISO code WNMG 08 04 04-MF 2025 identifies the exact insert geometry for toolholder matching.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torx or hex key specified by the toolholder manufacturer to secure the clamping screw to the correct torque range per that holder's documentation. Inspect the toolholder pocket and locating pin for wear or debris before seating a new insert to ensure proper edge positioning and prevent premature failure.