Sandvik Coromant 7231325 CNMG432-MF 2220 Turning Insert

Product Description

The SANDVIK COROMANT 7231325 is a CNMG432-MF 2220 indexable turning insert designed for external and internal turning operations on CNC lathes and turning centers. It features a solid carbide substrate with a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, delivering wear resistance and thermal stability across demanding cutting conditions. The insert has an 80-degree diamond shape (C), a neutral hand orientation, a 0.5 inch inscribed circle, a 3/16 inch thickness, and a 1/32 inch corner radius. It is part of the SANDVIK COROMANT T-Max P series and carries ISO code CNMG 12 04 08-MF 2220 with the MF chip breaker geometry. Machinists and CNC operators install this insert in compatible toolholders for precision turning work.

This insert is optimized for turning stainless steel as its primary workpiece material (ISO material group M). The MF chip breaker geometry is suited for finishing and medium finishing passes where controlled chip formation and surface finish are priorities. The CNMG style with clamp and pin holding method ensures rigid seating in the toolholder. Each insert provides 4 indexable cutting edges, reducing per-edge tooling cost on production runs. Typical applications include shaft turning, facing, and profiling on stainless steel components in manufacturing environments.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for wear and heat resistance
• MF chip breaker geometry for finishing and medium finishing on stainless steel
• 4 indexable cutting edges per insert for extended tooling value
• 80-degree diamond insert shape with 0 degrees relief angle (N clearance)
• Clamp and pin holding method for secure toolholder engagement
• ISO code CNMG 12 04 08-MF 2220 for straightforward cross-referencing

Compatibility

Designed for use in CNMG-style toolholders that accept a 0.5 inch inscribed circle, 3/16 inch thick, 80-degree diamond insert with clamp and pin holding. Verify toolholder pocket specifications against ISO CNMG 12 04 standards before installation.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Always power down and lock out the machine spindle before indexing or replacing inserts. Use the correct torque wrench and clamp screw specified by the toolholder manufacturer — do not overtighten, as this can fracture the insert. Inspect the toolholder pocket and locating pin for wear or debris before seating a new insert.