Sandvik Coromant 7080801 Turning Insert CNMG643-MR 4335

Product Description

The SANDVIK COROMANT 7080801 is a CNMG-style indexable turning insert in the T-Max P series, designed for external turning operations on steel workpieces in CNC lathe and turning center applications. The insert is manufactured from solid carbide substrate with a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, which provides wear resistance and thermal stability during continuous and interrupted cuts. Key geometry specs include an 80-degree diamond shape (C-code), a 3/4-inch inscribed circle, a 3/64-inch corner radius, and a 1/4-inch insert thickness. The MR chip breaker geometry is suited for medium-range cutting conditions in steel. Installation requires a compatible CNMG toolholder with clamp and pin holding.

This insert is intended for use in steel turning applications, classified under ISO material code P. The T-Max P series is a standard platform widely used in production turning environments, both in job shop and high-volume manufacturing settings. Typical users include CNC machinists and toolroom technicians running roughing to semi-finishing passes on carbon, alloy, and low-alloy steels. The neutral hand geometry allows use in standard right-hand and left-hand toolholders configured for CNMG seating. The MR chip breaker provides reliable chip control across a range of feed and depth-of-cut conditions common to steel turning.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for wear and heat resistance
• 80-degree diamond insert shape (C-code) with neutral hand orientation
• 3/4-inch inscribed circle and 1/4-inch thickness for rigid, stable seating
• 3/64-inch (0.0469-inch) corner radius for medium-finish steel turning
• MR chip breaker geometry optimized for medium cutting conditions in steel
• 4 cutting edges per insert; held via clamp and pin method in CNMG toolholders

Compatibility

Designed for use in CNMG-style indexable toolholders with clamp and pin holding that accept a 3/4-inch inscribed circle insert. ISO code designation is CNMG 19 06 12-MR 4335. Clearance code N, tolerance code M. Sized per insert size code 643.

Installation Notes

This insert is installed by a CNC machinist or toolroom technician into a compatible CNMG clamp-and-pin toolholder. Power down the machine and follow lockout/tagout procedures before changing inserts. Use appropriate insert seating tools and verify the insert is fully seated against the pocket walls before securing the clamp. Inspect the toolholder pocket for wear or debris before installing a new insert to ensure proper clamping force and edge repeatability.