Sandvik Coromant 7860468 Turning Insert WNMG432-PR 4415

Product Description

The SANDVIK COROMANT 7860468 is a solid carbide turning insert in the WNMG trigon style, designed for external turning operations on CNC lathes and turning centers. Manufactured to the T-Max P series standard, it carries a CVD-applied multilayer coating of Al2O3, TiN, and TiCN under grade 4415, providing thermal resistance and wear protection during continuous and interrupted cuts. The insert features a neutral hand orientation, a 0.5-inch inscribed circle, a 1/32-inch corner radius, and an 80-degree included angle. It is held via clamp or screw and delivers six usable cutting edges per insert, making it an efficient choice for high-volume turning applications.

This insert is suited for turning steel as its primary workpiece material (ISO code P) and cast iron as a secondary application (ISO code K), covering a wide range of ferrous machining tasks in both production and job-shop environments. The PR chip breaker geometry is engineered for general-purpose steel turning where reliable chip control and edge stability are critical. It is used in residential production settings and commercial manufacturing facilities wherever precision turned components are required. The ISO designation for this insert is WNMG 08 04 08-PR 4415, and the industry standard number matches that designation.

Key Features

• CVD multilayer coating: Al2O3, TiN, and TiCN for thermal and abrasion resistance
• Grade 4415 carbide substrate suited for steel and cast iron turning
• PR chip breaker geometry for reliable chip control in general-purpose steel applications
• Six cutting edges per insert for extended tool life and reduced per-edge cost
• Neutral hand orientation fits standard WNMG toolholders without handedness restrictions
• Compatible with clamp or screw insert-holding methods for setup flexibility

Compatibility

This insert conforms to the WNMG 08 04 08 ISO standard and is designed for use in standard WNMG-style toolholders within the SANDVIK COROMANT T-Max P series. It is intended for CNC turning centers and lathes configured for WNMG trigon inserts with clamp or screw clamping.

Installation Notes

Insert seating and replacement should be performed by a qualified machinist or toolroom technician with the machine in a safe, powered-down, and spindle-locked state. Clean the insert pocket and seating surfaces before installing to ensure proper contact and accurate positioning. Follow the toolholder manufacturer's torque guidance for screw-type clamping to avoid insert cracking. Inspect the chip breaker and cutting edge for wear or chipping at regular intervals as dictated by the machining program's tool-life parameters.