Sandvik Coromant 6868504 Turning Insert DNMG332-KF 3210

Product Description

The SANDVIK COROMANT 6868504 is a solid carbide turning insert in the DNMG style, designed for external and internal turning operations on CNC lathes and turning centers. Designated as DNMG332-KF in the 3210 grade, this insert features a 55-degree diamond shape with a neutral hand orientation and a rounded cutting edge style. The CVD-applied multilayer coating — TiCN, Al2O3, and TiN — provides wear resistance and thermal protection during medium to finish turning. The chip breaker geometry is type G (KF), suited for controlled chip formation on a range of workpiece materials. Machinists and CNC operators working in production environments rely on this insert for consistent performance across turning applications.

This insert is part of the SANDVIK COROMANT T-Max P series, engineered for turning operations in production machining environments. It is held in place using a clamp-and-pin system, which is standard for DNMG-style toolholders. With a 3/8-inch inscribed circle, a 3/16-inch insert thickness, and a 1/32-inch corner radius, it fits toolholders dimensioned for DNMG 11 04 08 geometry. Typical applications include finish and semi-finish turning of steel and similar materials where surface quality and dimensional control are priorities.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for wear and heat resistance
• 55-degree diamond insert shape (ISO shape code D) for versatile turning geometry
• Neutral hand orientation — compatible with neutral DNMG toolholders
• G-style chip breaker (KF designation) for controlled chip formation in finishing and medium cuts
• Clamp-and-pin holding method for secure, repeatable seating in compatible toolholders
• Maximum depth of cut up to 10.83 mm for semi-finish and finish passes

Compatibility

Designed for use in DNMG-style toolholders accepting an 11 04 08 insert size (ISO code DNMG 11 04 08-KF 3210). Verify toolholder clamp-and-pin compatibility before installation.

Installation Notes

Installation should be performed by a qualified machinist or CNC technician with the machine in a locked-out, zero-energy state before insert indexing or replacement. Use the appropriate torque wrench and clamp hardware specified for the DNMG toolholder to seat the insert properly — do not overtighten or substitute fasteners. Inspect the insert pocket for wear, debris, or damage before seating the new insert. Follow the machine tool manufacturer and toolholder documentation for correct clamping sequence.