Sandvik Coromant 5731715 Turning Insert DNMG442-MM 2025

Product Description

The SANDVIK COROMANT 5731715 is a DNMG442-MM 2025 series turning insert designed for indexable tooling applications in CNC turning operations. This insert features a 55-degree diamond shape with a neutral hand orientation and a 1/2-inch inscribed circle. The substrate is solid carbide with a CVD-applied multilayer coating of TiCN, Al2O3, and TiN in the manufacturer grade 2025. The MM chip breaker geometry is optimized for controlled chip flow and consistent performance in turning operations. With four cutting edges per insert, this geometry delivers extended tool life in demanding material removal applications. Licensed machinists and CNC lathe operators are the primary installers.

This turning insert is engineered primarily for machining stainless steel, corresponding to ISO workpiece material code M. It seats in DNMG-compatible toolholders using clamp and pin holding methods. The T-Max P series designation indicates compatibility with Sandvik Coromant T-Max P toolholder systems designed for this insert style. Typical applications include external turning, profiling, and facing operations on stainless steel components in both production and job-shop environments. The MM chip breaker geometry suits medium-depth cuts where chip control on tough, work-hardening materials is critical.

Key Features

• 55-degree diamond insert shape (Shape Code D) for versatile turning and profiling
• CVD multilayer coating: TiCN, Al2O3, and TiN for wear resistance on stainless steel
• Manufacturer grade 2025 with MM chip breaker geometry for controlled chip evacuation
• Four cutting edges per insert for cost-effective indexing
• Neutral hand orientation fits standard DNMG right- and left-hand toolholder setups
• Clamp and pin holding method for secure, repeatable insert seating

Compatibility

Designed for use in DNMG-compatible indexable turning toolholders that accept clamp and pin holding. ISO designation DNMG 15 06 08-MM 2025. Intended for T-Max P series toolholder systems. Primary workpiece material is stainless steel (ISO material code M).

Installation Notes

Installation is performed by a licensed machinist or CNC tooling technician. Always power down and lock out the machine before indexing or replacing inserts. Use the appropriate torque wrench and clamping hardware specified for the T-Max P toolholder to ensure secure insert retention. Inspect the insert pocket and seating surfaces for debris or wear before installing a new insert to maintain correct cutting geometry.