Sandvik Coromant 5725031 Turning Insert CNMA432-KR 3210

Product Description

The SANDVIK COROMANT 5725031 is a solid carbide turning insert in the CNMA 432 geometry, designed for use in the T-Max P series indexable tooling system. It features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, which provides wear resistance and thermal stability in demanding cutting applications. The insert carries an 80-degree diamond shape with a neutral hand orientation, a 1/2-inch inscribed circle, and a 1/32-inch corner radius. With four cutting edges per insert and a KR chip breaker, it is suited for productive turning operations on cast iron workpieces. Licensed machinists and CNC turning specialists install this insert in compatible CNMA-style toolholders.

This insert is engineered for turning cast iron components in both roughing and finishing contexts where a stable, clamped insert is required. The KR chip breaker geometry promotes controlled chip flow during cast iron cutting. The CNMA 432 designation indicates a 4.76 mm insert thickness, 12.70 mm inscribed circle, and 12.10 mm insert length. Insert holding is accomplished via clamp and pin methods. The ISO code for this insert is CNMA 12 04 08-KR 3210, and the manufacturer grade is 3210.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for thermal and abrasion resistance
• 80-degree diamond insert shape with neutral hand orientation
• KR chip breaker designed for cast iron turning applications
• Four usable cutting edges per insert for extended tooling economy
• Clamp and pin holding method for secure, repeatable seating
• Clearance code N, tolerance code M per ISO insert standards

Compatibility

The SANDVIK COROMANT 5725031 is compatible with CNMA-style toolholders designed for the T-Max P series. It is intended for use in indexable turning setups targeting cast iron as the primary workpiece material, as indicated by material code K. Specific compatible toolholder model numbers were not provided in the available product data.

Installation Notes

This insert is installed by a machinist or CNC tooling technician in a compatible CNMA-style toolholder using the clamp and pin holding method. Before indexing or replacing the insert, power down the machine and confirm the spindle is fully stopped. Use the appropriate torx or hex key as specified by the toolholder manufacturer when tightening the clamp screw. Do not exceed the toolholder manufacturer's recommended clamping torque, and inspect the insert seat and clamp for wear or debris before seating a new insert.