Sandvik Coromant 7860428 Turning Insert TNMX332-WF 4415

Product Description

The SANDVIK COROMANT 7860428 is a TNMX332-WF 4415 grade solid carbide turning insert designed for external and internal turning operations on CNC lathes and turning centers. This insert features a 60-degree diamond shape (T-style) with a neutral hand orientation and a 0.0313-inch corner radius. The 4415 grade substrate carries a CVD-applied multilayer coating of Al2O3, TiN, and TiCN, providing wear resistance and thermal stability across a broad range of cutting conditions. The WF chip breaker geometry is suited for light to medium finishing passes. Licensed machinists and CNC operators working in production turning environments are the primary installers and users.

This insert is part of the SANDVIK COROMANT T-Max P series, engineered for turning ISO material groups P (steel) and K (cast iron). It is appropriate for use in residential shop, job shop, and production machining environments where consistent surface finish and tool life on ferrous materials are priorities. The 3/8-inch inscribed circle and 3/16-inch insert thickness make it compatible with TNMX-style toolholders requiring an ISO size 16 insert. The clamp and screw holding method provides secure seating during interrupted and continuous cuts.

Key Features

• CVD multilayer coating: Al2O3, TiN, and TiCN for enhanced wear and thermal resistance
• 4415 grade carbide substrate optimized for ISO P and K workpiece materials
• 60-degree diamond insert shape with neutral hand for versatile turning applications
• WF chip breaker geometry suited for light to medium finishing cuts
• Clamp and screw holding method for rigid, secure insert seating
• ISO designation TNMX 16 04 08-WF 4415 for cross-reference purchasing

Compatibility

Designed as an OEM-style replacement turning insert for TNMX-style toolholders requiring an ISO size 16 insert with a clamp or screw holding method. Compatible with ISO material groups P (steel) and K (cast iron) per the 4415 grade specification. Industry Standard Number: TNMX 16 04 08-WF 4415.

Installation Notes

Insert seating and replacement should be performed by a qualified machinist or CNC operator with the machine fully stopped and in a safe, locked-out state. Ensure the toolholder pocket and seating surfaces are clean and free of chips before inserting. Use the appropriate torque driver per the toolholder manufacturer specifications for screw-type or clamp-type retention hardware. Follow applicable shop safety procedures and toolholder manufacturer guidelines when indexing or replacing inserts.