Sandvik Coromant 7231349 Turning Insert CNMG643-MM 2220

Product Description

The SANDVIK COROMANT 7231349 is a CNMG-style indexable turning insert engineered for external and internal turning operations on CNC lathes and turning centers. Manufactured from solid carbide and coated via CVD with a TiCN, Al2O3, and TiN multilayer system, this insert carries the manufacturer grade designation 2220, positioning it for steel and general-purpose turning applications where wear resistance and thermal stability are critical. The insert features an 80-degree diamond shape (shape code C), a neutral hand orientation, a 3/4-inch inscribed circle, and a 3/64-inch corner radius. It belongs to SANDVIK COROMANT T-Max P series and is identified by ISO code CNMG 19 06 12-MM 2220 with the MM chip breaker geometry.

This insert is suited for medium to roughing turning passes on steel and similar workpiece materials in production machining environments. The MM chip breaker geometry promotes controlled chip flow across a range of feeds and depths of cut, making it a practical choice for shops running moderate material removal rates on steel components. Machinists and CNC operators working in job shops, production facilities, and maintenance machining operations are the primary installers of this insert. It is sold individually and packaged as a quantity of one.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for elevated wear resistance and thermal barrier performance
• 80-degree diamond insert shape provides a strong cutting edge with good approach angle versatility
• 3/64-inch (0.0469 inch) corner radius balances surface finish capability with edge strength
• MM chip breaker geometry supports controlled chip evacuation across varied feed rates
• Neutral hand orientation allows use on both right-hand and left-hand tool holders
• CNMG tolerance and M tolerance code ensure consistent seating and repeatable insert indexing
• Compatible with clamp and pin insert holding methods for secure fixturing

Compatibility

Designed to fit CNMG-style tool holders that accept a 3/4-inch inscribed circle insert with clamp or pin holding methods. ISO code CNMG 19 06 12-MM 2220 can be used to cross-reference compatible SANDVIK COROMANT T-Max P tooling systems and equivalent CNMG holder configurations from other manufacturers. Consult holder documentation to confirm insert pocket geometry and clamping method before installation.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and the tool holder is secured in the turret or block before seating or indexing the insert. Verify the insert pocket is clean and free of chips or debris to ensure proper seating against the locating surfaces. Do not exceed the clamping torque specified in the tool holder manufacturer documentation for the clamp screw.