Sandvik Coromant 7860819 Turning Insert DCMT32.52-PM 4425

Product Description

The SANDVIK COROMANT 7860819 is a DCMT-style turning insert engineered for precision external turning operations on CNC lathes and turning centers. Part of the CoroTurn 107 series, this solid carbide insert features a multilayer CVD coating of TiCN, Al2O3, and TiN, delivering a hard, wear-resistant surface for cutting steel and cast iron at productive speeds. The insert carries a 55-degree diamond shape (DCMT geometry) with a 0.79 mm (0.0313 inch) corner radius, a 3/8-inch inscribed circle, and a neutral hand orientation. The PM chip breaker geometry is designed to control chip flow effectively across a broad range of depths of cut and feed rates. Licensed machinists and CNC operators install this insert as a precision tooling component in production turning environments.

This insert is suited for turning operations on steel (ISO P) as its primary workpiece material and cast iron (ISO K) as its secondary workpiece material. The CoroTurn 107 series is designed for external turning with clamp and screw holding methods. The PM chip breaker geometry performs well across finishing to medium roughing passes, making it a versatile choice for shops running mixed-material turning schedules. Typical applications include shaft turning, facing, and profiling on CNC turning centers in both job-shop and production environments.

Key Features

• Multilayer CVD coating: TiCN, Al2O3, TiN for extended tool life in steel and cast iron
• 55-degree diamond insert shape (DCMT) with neutral hand for versatile profiling and turning
• PM chip breaker designed for reliable chip control across a range of feeds and depths
• 0.79 mm (0.0313 inch) corner radius for balanced edge strength and surface finish
• Clamp and screw holding method compatible with CoroTurn 107 toolholders
• 2 cutting edges per insert for cost-effective indexing

Compatibility

Designed for use with CoroTurn 107 series toolholders accepting DCMT-style inserts with a 3/8-inch inscribed circle, clamp and screw holding method, and clearance code C. ISO code: DCMT 11 T3 08-PM 4425.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before indexing or replacing the insert. Seat the insert fully in the pocket and secure with the appropriate clamp and screw torqued to toolholder specifications. Inspect the insert pocket for chips or debris before seating to ensure proper contact and edge accuracy.