Sandvik Coromant 5724987 Turning Insert Cnmg T-max P

Product Description

The SANDVIK COROMANT 5724987 is a CNMG-style indexable turning insert designed for external and internal turning operations on CNC lathes. It features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN over a solid carbide substrate, delivered in manufacturer grade 2025. The insert carries an 80-degree diamond shape, a neutral hand orientation, and a corner radius of 0.0469 inches (3/64 inches). With an inscribed circle of 0.5 inches and an insert length of 0.4605 inches, it is sized for medium-duty turning toolholders. Installation is performed by machining professionals on CNC turning centers.

This insert is engineered for turning stainless steel (ISO material group M), where edge toughness and resistance to built-up edge are critical. The MM chip breaker geometry is optimized for medium cutting conditions in stainless and similar tough alloys. It belongs to the SANDVIK COROMANT T-Max P series, a platform widely used in production turning environments. The insert mounts using a clamp-and-pin holding method and provides four usable cutting edges per insert, reducing per-edge tooling cost in high-volume applications.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for wear resistance and thermal stability
• Manufacturer grade 2025 optimized for stainless steel (ISO M) turning
• MM chip breaker geometry suited for medium-condition cuts
• Four cutting edges per insert for extended tool life value
• Clamp-and-pin holding method for secure seating in T-Max P toolholders
• Neutral hand insert accommodates left- or right-hand toolholder configurations

Compatibility

Designed for use in SANDVIK COROMANT T-Max P series toolholders that accept CNMG 12 04 12 inserts with clamp-and-pin mounting. ISO code CNMG 12 04 12-MM 2025 identifies the exact toolholder family and seat geometry required.

Installation Notes

This insert is installed and indexed by machinists on CNC or manual turning equipment. Power down and lock out the machine spindle before seating or indexing the insert. Inspect the insert pocket and clamping hardware for wear or debris before installation to ensure proper seating and cutting-edge stability. Follow the toolholder manufacturer torque guidelines for the clamping screw; do not overtighten by hand estimation alone.