Sandvik Coromant 5731312 DNMG432-MF Turning Insert

Product Description

The SANDVIK COROMANT 5731312 is a DNMG432-MF turning insert from the T-Max P series, designed for precision external turning operations on CNC lathes. Manufactured from solid carbide and coated via CVD with a TiCN, Al2O3, and TiN multilayer stack, this insert is engineered primarily for machining stainless steel (ISO material code M). The neutral hand orientation makes it suitable for standard toolholder setups. With a 55-degree diamond insert shape, 0.5789-inch length, and a 1/2-inch inscribed circle diameter, the geometry delivers controlled chip formation and edge stability under moderate to aggressive cutting conditions.

This insert is intended for use in production turning environments where stainless steel and similar difficult-to-machine alloys are common workpiece materials. The MF chip breaker geometry is optimized for finishing to medium-cut operations, producing predictable chip control on tough, work-hardening materials. It is installed and changed by machinists and CNC tooling technicians in job shop, contract machining, and manufacturing environments. The T-Max P series is a widely used indexable turning platform suited to rigid, stable setups on modern CNC turning centers and lathes.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for wear resistance and heat management
• MF chip breaker geometry engineered for stainless steel finishing to medium cuts
• 55-degree diamond insert shape (DNMG) with neutral hand orientation
• Four usable cutting edges for cost-effective tooling inventory management
• 1/32-inch corner radius for controlled surface finish on tight-tolerance features
• Compatible with clamp and pin insert holding methods

Compatibility

Designed as an OEM-style indexable turning insert for use in DNMG-style toolholders within the SANDVIK COROMANT T-Max P series turning system. Consult toolholder documentation to confirm correct pocket and clamping method before installation.

Installation Notes

This insert is installed by qualified machinists or CNC tooling technicians. Power down and lock out the machine before indexing or replacing inserts. Use the appropriate torque tool for the clamping screw per the toolholder manufacturer's guidelines - do not overtighten by hand. Inspect the toolholder pocket for debris, damage, or wear before seating the new insert to ensure proper support and accurate tip location.