Sandvik Coromant 5756458 WNMG431-MF 1115 Turning Insert

Product Description

The SANDVIK COROMANT 5756458 is a WNMG431-MF 1115 grade solid carbide turning insert from the T-Max P series, designed for precision external turning operations in demanding machining environments. The insert features a TiAlN and AlCr2O3 PVD coating applied over a carbide substrate, delivering strong resistance to heat and wear. With an 80-degree trigon shape, a neutral hand orientation, and a 0.0156-inch corner radius, it is engineered for finish and semi-finish turning passes that require tight dimensional control. Machinists and CNC operators working with difficult materials rely on this insert for consistent edge performance across extended run times.

This insert is optimized for primary use on stainless steel workpieces and is also rated for secondary applications on superalloys and titanium — material families that demand high edge stability and coating integrity. The MF chip breaker geometry is suited to finishing cuts at moderate feed rates, producing manageable chips and controlled surface finishes. It is a direct-fit replacement insert for T-Max P compatible toolholders used in CNC turning centers and manual lathes in production and job-shop environments.

Key Features

• WNMG431-MF geometry with 80-degree trigon shape and 6 usable cutting edges per insert
• Grade 1115 carbide substrate with TiAlN and AlCr2O3 PVD dual-layer coating for heat and wear resistance
• MF chip breaker optimized for finish and semi-finish turning on difficult-to-machine alloys
• Neutral hand orientation for flexible toolholder compatibility
• 0-degree relief angle (clearance code N) with tolerance code M for consistent seating and repeatability
• Clamp and pin insert-holding method compatibility

Compatibility

Designed for use in T-Max P series toolholders accepting WNMG-style inserts with a 0.5-inch inscribed circle. Compatible with ISO code WNMG 08 04 04-MF 1115 toolholder specifications. Clamp and pin holding methods are supported.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. The machine spindle must be stopped and locked out before seating or indexing the insert. Ensure the insert pocket and clamp surfaces are clean and free of chips or debris before securing the insert to prevent seating errors that can cause premature edge failure. Follow the toolholder manufacturer torque and clamping guidelines for the specific clamp or pin style in use.