Sandvik Coromant 5731314 DNMG432-MF 2025 Turning Insert

Product Description

The SANDVIK COROMANT 5731314 is a DNMG432-MF 2025 grade turning insert designed for external turning operations on CNC lathes and turning centers. This indexable insert is manufactured from carbide substrate and coated with a CVD-applied multilayer stack of TiCN, Al2O3, and TiN for wear resistance and thermal protection. The insert features a 55-degree diamond shape, neutral hand orientation, and an MF chip breaker geometry suited for medium to light finishing passes. With four cutting edges per insert, it delivers a low cost-per-edge in production environments. The 0.5789-inch insert length and 0.5-inch inscribed circle correspond to the ISO DNMG 15 04 08 designation.

The 5731314 is engineered primarily for cutting stainless steel (ISO material group M), where the MF chip breaker geometry and CVD multilayer coating work together to manage built-up edge and heat at the cutting zone. Typical applications include shaft turning, facing, and contour work on austenitic and duplex stainless grades in both job-shop and production environments. The T-Max P series platform this insert belongs to is designed for secure clamping in standard negative-rake toolholders used by machinists and CNC operators across general and precision turning.

Key Features

• CVD multilayer coating: TiCN, Al2O3, TiN for extended tool life in stainless steel cutting
• DNMG 55-degree diamond shape with neutral hand orientation for versatile turning setups
• MF chip breaker geometry optimized for medium-light finishing cuts
• Four usable cutting edges per insert reduces per-edge tooling cost
• Clamp and pin insert holding method for rigid, repeatable seating in compatible toolholders
• ISO code DNMG 15 04 08-MF 2025 for direct cross-reference and replacement sourcing

Compatibility

Designed for use in DNMG-style negative-rake toolholders that accept clamp and pin insert retention. Compatible with the SANDVIK COROMANT T-Max P toolholder system. Refer to the ISO code DNMG 15 04 08-MF 2025 when cross-referencing to equivalent holder seats or competing insert brands.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Always power down and lock out the machine spindle before indexing or replacing inserts. Seat the insert fully against the toolholder pocket locating surfaces before tightening the clamp screw; incomplete seating causes premature edge failure and poor surface finish. Inspect the insert pocket and clamp for chips or debris before each insert change.