Sandvik Coromant 6868484 Turning Insert CNMG432-KF

Product Description

The SANDVIK COROMANT 6868484 is a CNMG432-KF 3225 series turning insert designed for precision metal-cutting operations on CNC lathes and turning centers. This indexable insert is manufactured from solid carbide and features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, providing wear resistance and thermal stability during interrupted and continuous turning. The 80-degree diamond insert shape delivers a strong cutting edge geometry suited for medium to roughing passes. With a 1/2-inch inscribed circle, a 3/16-inch insert thickness, and a 1/32-inch corner radius, this insert is installed by machinists and CNC operators in production and job-shop environments.

This insert is optimized for turning cast iron workpieces, corresponding to ISO material group K. It belongs to the T-Max P series, which is engineered for general external and internal turning applications. The KF chip breaker geometry controls chip flow effectively in cast iron turning, reducing chip fouling and protecting the workpiece surface. This insert is well suited for production turning where consistent tool life and predictable wear are required. It is compatible with standard CNMG-style insert pockets using clamp and pin holding methods.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for heat and wear resistance in cast iron turning
• 80-degree diamond insert shape with rounded cutting edge style for strong, stable engagement
• KF chip breaker geometry designed to manage chips in K-material cast iron applications
• 4 usable cutting edges per insert for extended tool economy
• Neutral hand orientation for flexible use in standard CNMG toolholders
• ISO code CNMG 12 04 08-KF 3225 for direct cross-reference to compatible tooling systems

Compatibility

Designed for use in CNMG-style insert pockets with clamp and pin holding systems. ISO designation CNMG 12 04 08-KF 3225 enables direct cross-referencing to compatible toolholders accepting CNMG432 inserts.

Installation Notes

Installation is performed by machinists and CNC tooling technicians. Before indexing or replacing an insert, confirm the machine spindle is fully stopped and the turret is locked out per shop safety procedures. Seat the insert fully in the pocket and torque the clamp or pin per the toolholder manufacturer specifications. Inspect the insert pocket and clamp for wear or debris before seating a new insert to ensure proper seating and edge repeatability.