Sandvik Coromant 5731725 Turning Insert DNMG442MF 2015

Product Description

The SANDVIK COROMANT 5731725 is a DNMG442MF-style carbide turning insert from the T-Max P series, designed for finishing operations on stainless steel workpieces. It carries a multilayer TiCN, Al2O3, and TiN CVD-style coating that delivers high wear resistance while maintaining adequate toughness against the demanding cutting conditions of austenitic and similar stainless grades. The insert measures 15.5 mm in length with a 0.5-inch inscribed circle and a 1/32-inch corner radius. It features a 55-degree diamond (rhombic) geometry, a negative side clearance, and a neutral hand orientation, making it suitable for a range of straight turning toolholders. CNC machinists and toolroom technicians working on turning centers and lathes typically select this grade.

This insert is intended for finishing passes on stainless steel components in both production and job-shop environments. Its MF chip breaker geometry is optimized to control chips at light-to-moderate depths of cut, making it well suited for achieving tight surface finishes on tubular or shaft-type parts common in food processing, chemical, medical, and general industrial applications. The maximum depth of cut is 14.70 mm, supporting a range of finishing stock-removal scenarios. The insert accommodates both clamp and pin holding methods, providing flexibility across compatible toolholder configurations.

Key Features

• Multilayer TiCN, Al2O3, and TiN coating for high wear resistance on stainless steel
• MF chip breaker geometry engineered for finishing operations with controlled chip formation
• 55-degree diamond insert shape (ANSI code DNMG442) with 4 usable cutting edges
• Negative side clearance and neutral hand orientation for broad toolholder compatibility
• 1/32-inch corner radius balances edge strength and surface finish quality
• Maximum depth of cut of 14.70 mm suitable for finishing pass applications

Compatibility

Designed for use in toolholders accepting DNMG442 (ISO DNMG 15 06 08) style inserts with clamp or pin holding methods. Compatible with the SANDVIK COROMANT T-Max P turning system. Verify toolholder seat geometry and clamping method before installation.

Installation Notes

Turning inserts of this type are installed and indexed by qualified machinists or toolroom technicians following machine-tool lockout procedures before any insert change. Use the appropriate torque wrench and clamping hardware specified by the toolholder manufacturer — do not over-tighten the clamp screw, as this can crack the insert or distort the seat. Inspect the toolholder pocket and seat for chips or wear before seating a new insert. Always verify tool offset data in the CNC control after indexing or replacing an insert.