Walter 5866880 CNMG432-NMS WSM10 Turning Insert

Product Description

The WALTER 5866880 is a solid carbide turning insert designed for high-performance metal removal in demanding machining applications. Carrying the ANSI designation CNMG432-NMS WSM10 and ISO code CNMG120408-NMS WSM10, this insert features a multilayer PVD coating of TiAlN, Al2O3, and ZrCN for extended tool life under heat and abrasion. The 80-degree diamond (rhombic) shape with a negative rake angle and negative side clearance suits roughing and medium machining operations. With four usable cutting edges per insert, it delivers strong cost-per-edge value for production turning environments. Licensed machinists and CNC operators in job shops and manufacturing facilities are the primary installers.

This insert is engineered primarily for stainless steel and superalloys and titanium (ISO material codes M and S), with secondary application in steel (ISO code P). It is suited for turning, facing, and boring operations on CNC lathes and turning centers. The NMS chip breaker geometry is optimized for roughing and medium machining passes, managing chip formation at higher feed rates and depths of cut typical in aerospace, medical, and industrial component manufacturing.

Key Features

• Multilayer PVD coating: TiAlN, Al2O3, and ZrCN for heat and wear resistance
• 80-degree diamond insert shape with chamfered and honed cutting edge style
• Four cutting edges per insert for extended usable life
• NMS chip breaker geometry rated for roughing and medium machining
• Negative rake and negative side clearance for stable, rigid cutting action
• Compatible with clamp and pin insert holding methods

Compatibility

Designed for use in CNMG-style toolholders accepting ANSI size code 432 inserts with clamp or pin retention. Fits tooling systems conforming to ANSI and ISO standards for CNMG120408 insert geometry.

Installation Notes

Installation is performed by machinists or CNC setup technicians. Power down and de-energize the machine before indexing or replacing inserts. Use the correct torque wrench and manufacturer-specified clamping hardware when seating the insert to ensure secure retention. Inspect the insert pocket and seating surface for chips or debris before installing a fresh edge.