Sandvik Coromant 7860569 Turning Insert WNMG331-PF 4415

Product Description

The SANDVIK COROMANT 7860569 is a WNMG331-PF 4415 grade solid carbide turning insert from the T-Max P series, designed for external turning operations on CNC lathes and turning centers. The insert features a trigon (W) shape with an 80-degree included angle, a 3/8-inch inscribed circle, and a 0.40 mm (0.0156 inch) corner radius. It carries a CVD-applied multilayer coating of Al2O3, TiN, and TiCN, which delivers thermal resistance and wear protection during medium to high material removal rates. This insert is installed by CNC machinists and tool-and-die professionals in production turning environments.

The WNMG331-PF 4415 is optimized for turning steel as its primary workpiece material and cast iron as its secondary workpiece material. The PF chip breaker geometry is suited for finishing and light roughing passes where controlled chip formation and surface finish are priorities. It installs in standard WNMG-style toolholders using clamp or screw holding methods. The neutral hand orientation makes it compatible with both right-hand and left-hand toolholder configurations. The T-Max P series is a widely used platform in high-volume turning applications across general machining and component manufacturing.

Key Features

• CVD-coated with Al2O3, TiN, and TiCN for wear resistance and thermal stability
• PF chip breaker geometry optimized for finishing and light roughing on steel
• 80-degree trigon insert shape (W) with 6 available cutting edges
• 3/8-inch inscribed circle with 0.40 mm corner radius for precise edge geometry
• Neutral hand orientation — compatible with right-hand and left-hand toolholders
• Clamp and screw holding methods supported for secure seating under load

Compatibility

Designed for use in WNMG-style turning toolholders that accept a 3/8-inch inscribed circle insert with clamp or screw holding. ISO code WNMG 06 04 04-PF 4415. Compatible toolholders must match the WNMG seat geometry and the 0.1500-inch hole diameter for screw-lock mounting.

Installation Notes

Installation is performed by qualified CNC machinists or tooling technicians. De-energize and lock out the machine before indexing or replacing inserts. Use the correct torque wrench and manufacturer-specified fastener when securing the insert with a clamping screw to avoid seat damage or insert fracture. Inspect the insert pocket and seat surface for chips or debris before seating a new insert, and confirm the insert is fully seated before resuming cuts.