Sandvik Coromant 5731851 DNMG432-QM Turning Insert S05F

Product Description

The SANDVIK COROMANT 5731851 is a DNMG432-QM indexable turning insert in grade S05F, designed for precision external turning operations on CNC lathes and turning centers. The insert features a multilayer TiCN, Al2O3, and TiN CVD coating applied over a solid carbide substrate, delivering wear resistance and thermal stability across a broad range of cutting conditions. The 55-degree diamond shape (Insert Shape Code D) with a 0-degree relief angle and QM chip breaker geometry makes this insert well suited for medium to finishing passes in steel and hard materials. Corner radius measures 0.0313 inches (0.79 mm) and inscribed circle diameter is 0.5000 inches (12.70 mm).

This insert is intended for use in industrial turning applications requiring tight tolerances and consistent surface finishes. The DNMG style and M tolerance code make it compatible with standard DNMG-style toolholders using clamp and pin holding methods, commonly found in production turning environments. It is installed by licensed machinists and CNC operators in both job shop and production manufacturing settings. The QM chip breaker geometry is suited for medium finishing cuts where controlled chip formation is critical.

Key Features

• Multilayer TiCN, Al2O3, and TiN CVD coating over solid carbide substrate for extended tool life
• 55-degree diamond insert shape (Shape Code D) for versatile turning and profiling
• QM chip breaker geometry optimized for medium to finishing turning passes
• Corner radius of 0.0313 inches (0.79 mm) for controlled surface finish
• Clamp and pin holding method compatible with standard DNMG toolholders
• ISO code DNMG 15 04 08-QM S05F for cross-reference identification

Compatibility

Designed for use in standard DNMG-style toolholders that accept clamp and pin holding methods. Verify holder bore diameter compatibility with the 0.2030-inch hole diameter before installation. Refer to the ISO code DNMG 15 04 08-QM S05F for direct cross-reference to equivalent insert specifications.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator with the machine fully powered down and spindle locked before indexing or replacing the insert. Use the appropriate torx or hex key to secure the clamp to the manufacturer-specified procedure without overtightening, which can crack the carbide substrate. Inspect the insert seat and shim for debris or wear before seating the new insert. Follow your facility's tooling management and lockout/tagout procedures during any insert change.