Sandvik Coromant 7860773 Turning Insert DNMX433-WMX 4425

Product Description

The SANDVIK COROMANT 7860773 is a DNMX433-WMX 4425 indexable turning insert designed for external turning operations on CNC lathes and turning centers. It features a 55-degree diamond insert shape with a neutral hand orientation, a 0.5 inch (12.70 mm) inscribed circle, and a 1.19 mm (0.0469 inch) corner radius. The carbide substrate carries a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, providing wear resistance and thermal stability suited for both steel and cast iron workpiece materials. Licensed machinists and CNC operators install this insert in compatible clamp- or screw-style toolholders as part of the T-Max P turning system.

This insert is intended for precision turning applications in production and job-shop environments. Its ISO code DNMX 15 04 12-WMX 4425 identifies it as a 55-degree diamond insert with a medium-positive geometry and the WMX chipbreaker, which is optimized for finishing to medium roughing cuts. Primary workpiece material code K indicates suitability for cast iron and hardened materials, while secondary code P covers general steel turning. It is sold individually with a minimum order quantity of 10 units.

Key Features

• 55-degree diamond insert shape (shape code D) for versatile external turning geometry
• CVD multilayer coating: TiCN, Al2O3, and TiN for thermal and abrasion resistance
• WMX chipbreaker geometry suited for finishing to medium roughing passes
• 0.5 inch inscribed circle with 0.0469 inch corner radius for consistent edge geometry
• Neutral hand orientation compatible with both left- and right-hand toolholder setups
• Compatible with clamp and screw insert holding methods

Compatibility

Designed for use in SANDVIK COROMANT T-Max P series toolholders that accept DNMX-style inserts with a 0.5 inch inscribed circle and clamp or screw retention. ISO code DNMX 15 04 12-WMX 4425 should be used to confirm toolholder compatibility before installation.

Installation Notes

Installation is performed by licensed machinists or CNC operators with the machine in a de-energized and locked-out state per applicable OSHA lockout-tagout procedures. Use the appropriate insert key or Torx driver specified by the toolholder manufacturer when securing the clamping screw or clamp. Inspect the insert pocket and clamping components for wear or debris before seating the insert. Do not exceed the toolholder manufacturer-rated depth of cut or feed rate for this insert geometry.