Sandvik Coromant 7231474 Turning Insert TNMG434-MR 2220

Product Description

The SANDVIK COROMANT 7231474 is a TNMG-style turning insert designed for precision external turning operations on CNC and manual lathes. It carries ISO code TNMG 22 04 16-MR 2220 and belongs to the T-Max P series, a line engineered for reliable performance in steel and general-purpose turning applications. The insert features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN over a solid carbide substrate, providing wear resistance and thermal stability during moderate to high cutting speeds. The neutral hand orientation suits a wide range of tool holders. A 1/16-inch corner radius and 60-degree triangular geometry contribute to controlled chip formation and consistent surface finish. Licensed machinists and CNC operators install this insert in production and job-shop environments.

This insert is suited for use in T-Max P series tooling systems. The TNMG 434 size designation indicates a 1/2-inch inscribed circle and a 3/16-inch insert thickness, making it compatible with standard TNMG-style clamp and pin style tool holders. The MR chip breaker geometry is intended for medium roughing and finishing passes. It is appropriate for both residential machine shops and commercial production facilities running continuous or interrupted turning operations on ferrous materials.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for extended tool life and heat resistance
• Solid carbide substrate in manufacturer grade 2220 for toughness in general turning
• 60-degree triangular insert shape with neutral hand for versatile holder compatibility
• 1/16-inch (0.0625 inch) corner radius for controlled surface finish
• Clamp and pin holding method for secure seating in T-Max P holders
• MR chip breaker geometry suited to medium roughing and finishing cuts

Compatibility

Designed for use with T-Max P series tool holders accepting TNMG-style inserts with clamp and pin holding method. Confirm holder pocket tolerances against ISO code TNMG 22 04 16-MR 2220 before installation.

Installation Notes

Insert replacement should be performed with the machine fully powered down and the spindle locked. Use the appropriate torque wrench and clamp hardware specified by the tool holder manufacturer when seating the insert. Inspect the pocket seating surface for chips or debris before installing a new insert. Handle carbide inserts with care to avoid edge chipping prior to use.