Sandvik Coromant 8020992 Turning Insert Cpmt-um 4415

Product Description

The SANDVIK COROMANT 8020992 is a CPMT-style turning insert designed for precision metal-cutting operations on CNC lathes and turning centers. It carries ISO designation CPMT 09 T3 08-UM 4415 and features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, which provides wear resistance, thermal insulation, and oxidation protection across a range of cutting conditions. The inscribed circle measures 0.375 inches, the insert thickness is 0.1563 inches, and the corner radius is 0.0313 inches. This insert is installed by machinists and CNC operators in production and job-shop turning environments where consistent tool life and surface finish are critical.

This insert is suited for turning applications on materials corresponding to ISO K workpiece classification, which includes cast irons and similar materials. The CPMT-UM series chip breaker geometry is optimized for medium cutting conditions, offering reliable chip control at moderate feeds and depths of cut. It is a neutral-hand insert, making it adaptable to both external and internal turning configurations where geometry permits. Typical applications include roughing to semi-finishing passes on ferrous components in both low-volume and high-volume production settings.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for extended wear life and thermal resistance
• 0.375 inch inscribed circle with 0.0313 inch corner radius for precise corner geometry
• CPMT-UM chip breaker series for reliable chip control at medium feeds
• Neutral hand orientation compatible with a wide range of toolholders
• 11-degree relief angle (clearance code P) reduces cutting edge stress
• Compatible with both clamp and screw insert holding methods

Compatibility

Designed as an OEM-style replacement turning insert for toolholders accepting CPMT 09 T3 08 geometry with clamp or screw holding methods, per ISO insert nomenclature.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator with the machine in a full stop and lockout state before touching the toolholder pocket. Seat the insert firmly against the pocket locating surfaces and secure with the appropriate clamp or screw torque as specified by the toolholder manufacturer. Inspect the seating pocket for chips or debris before installation, as contamination will affect insert seating and cutting performance. Dispose of worn inserts per facility safety protocols for sharp metal objects.