Sandvik Coromant 7860808 SNMG433-PF 4425 Turning Insert

Product Description

The SANDVIK COROMANT 7860808 is a solid carbide turning insert in the SNMG433-PF 4425 designation, part of the T-Max P series. It carries a CVD-applied multilayer coating of TiCN, Al2O3, and TiN for wear resistance and thermal stability during continuous and interrupted turning operations. The insert features a square shape with a neutral hand orientation, a 0.5000-inch (12.70 mm) inscribed circle, and a 0.0469-inch (1.19 mm) corner radius. Clearance code N and tolerance code M apply. The PF chipbreaker geometry is designed for finishing passes. Machinists and CNC turning specialists install this insert in compatible toolholders for precision metal removal.

This insert is suited for finishing and light roughing operations on ferrous and cast-material workpieces, consistent with its primary ISO material group code K and secondary code P. It fits standard SNMG 12 04 insert pockets as designated by ISO code SNMG 12 04 12-PF 4425. Typical applications include CNC lathe and turning center operations in job shop, production machining, and maintenance environments where tight tolerances and surface finish are critical.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for extended tool life and heat resistance
• PF chipbreaker geometry optimized for finishing cuts and chip control
• Square insert shape (code S) with neutral hand for flexible toolholder compatibility
• 0.5000-inch inscribed circle and 0.0469-inch corner radius for consistent edge geometry
• Tolerance code M and clearance code N for reliable insert-to-pocket fit
• Part of the T-Max P series, a recognized platform for external turning applications

Compatibility

Designed as an OEM-style replacement insert fitting standard SNMG 12 04 insert pockets in compatible turning toolholders. ISO code SNMG 12 04 12-PF 4425 and manufacturers catalog number SNMG 433-PF 4425 apply. Verify toolholder pocket geometry and clamping method (clamp or screw) before installation.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before changing inserts. Use the appropriate torx or hex key for the clamping screw or top clamp as specified by the toolholder manufacturer; do not overtighten, as this can fracture the carbide substrate. Inspect the insert pocket seat and clamping surfaces for chips or debris before seating the new insert.