Sandvik Coromant 8019502 Turning Insert Carbide

Product Description

The SANDVIK COROMANT 8019502 is a DPMT-series indexable turning insert designed for precision metal cutting on CNC lathes and turning centers. It carries the ISO designation DPMT 07 02 04-PM 4425 and is manufactured from solid carbide with a CVD-applied multilayer coating of TiCN, Al2O3, and TiN. The diamond-shaped insert (D shape code) features an 11-degree relief angle, a 0.2500-inch inscribed circle, and a 0.0156-inch corner radius. The PM chip breaker geometry is engineered for positive chip control during turning operations. This insert is installed by machinists and toolroom technicians working in production and job-shop environments.

This insert is suited for turning steel workpieces in both roughing and semi-finishing applications. The PM geometry and 4425 grade combination targets ISO P steel cutting, with secondary suitability for K-code materials. It is a neutral-hand insert, making it appropriate for standard right-hand tool holders using clamp or screw holding methods. Typical applications include external diameter turning, shoulder turning, and facing on steel components where consistent chip evacuation and tool life are priorities.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for wear resistance and thermal stability on steel
• 0.0156-inch corner radius for controlled surface finish and edge strength
• 0.2500-inch (1/4-inch) inscribed circle for use in standard DPMT toolholders
• 11-degree relief angle (clearance code P) reduces flank wear on steel
• PM chip breaker geometry promotes positive chip control across a range of depths and feed rates
• Compatible with clamp and screw holding methods for secure seating in the toolholder

Compatibility

Designed as an OEM-style indexable replacement insert for DPMT-series toolholders accepting a D-shaped insert with a 0.2500-inch inscribed circle, tolerance code M, and clearance code P. Primary workpiece material is steel (ISO P); secondary suitability is indicated for ISO K-code materials.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Before indexing or replacing an insert, the machine spindle must be fully stopped and locked out per LOTO procedures. Seat the insert firmly in the toolholder pocket and tighten the clamp or screw to the toolholder manufacturer's specified torque. Inspect the insert pocket and seating surface for chips or debris before securing, as contamination can cause insert rocking and premature failure.