Seco 02959841 WNMG431-MF2 Turning Insert Carbide Cvd

Product Description

The SECO 02959841 is a WNMG431-MF2 series indexable turning insert designed for metal cutting on CNC lathes and turning centers. It is manufactured from carbide substrate and features a CVD-applied Duratomic multilayer coating of TiCN, Al2O3, and Cr for extended wear resistance and thermal stability. The insert carries a TP2501 manufacturer grade and an MF2 chip breaker geometry optimized for light-to-medium finishing and semi-finishing passes. With 6 cutting edges per insert, a 0.5-inch inscribed circle, and a 0.0157-inch corner radius, it delivers consistent, repeatable results across high-volume production environments. CNC machinists and tool-and-die professionals specify this insert for its balance of edge security and surface finish performance.

This insert is rated for primary use on steel (ISO material code P) and is also suitable for stainless steel (M) and cast iron (K) applications. The MF2 chip breaker geometry supports boring, facing, and turning operations at light-to-moderate depths of cut up to 0.3346 inches. Its neutral hand orientation makes it adaptable to both left- and right-hand toolholders. The insert holds to ISO tolerance code M and clearance code N, fitting standard WNMG-style toolholders with clamp, pin, or lever-lock retention systems. Applicable material grades include P10, P20, P30, and P35.

Key Features

• CVD Duratomic multilayer coating: TiCN, Al2O3, and Cr for high-temperature wear resistance
• MF2 chip breaker geometry for finishing and semi-finishing on steel and stainless steel
• 6 indexable cutting edges per insert for maximum cost efficiency
• Neutral hand orientation compatible with standard WNMG left- and right-hand toolholders
• Chamfered and honed cutting edge style for edge strength and reduced chipping risk
• Compatible with clamp, pin, and lever-lock holding methods

Compatibility

Designed for use in WNMG-style toolholders accepting a 0.5-inch inscribed circle insert with an 0.2028-inch hole diameter. Retention methods include clamp, pin, and lever lock. ISO code WNMG080404-MF2. Industry standard number WNMG431-MF2. Conforms to ANSI and ISO insert standards.

Installation Notes

Installation is performed by qualified CNC machinists or toolroom personnel. Power down and de-energize the machine before indexing or replacing inserts. Use the appropriate torque wrench per toolholder manufacturer specifications when securing the clamping screw or lever-lock mechanism. Inspect the toolholder seat and shim for damage before seating a new insert to ensure proper support and prevent premature edge failure.