Sandvik Coromant 7860462 Turning Insert VBMT332-PM 4415

Product Description

The SANDVIK COROMANT 7860462 is a VBMT332-PM 4415 turning insert designed for external turning operations on CNC and manual lathes. It features a 35-degree diamond insert shape with a 3/8-inch inscribed circle and a 1/32-inch corner radius. The substrate is solid carbide with a CVD-applied multilayer coating of Al2O3, TiN, and TiCN, using the manufacturer grade designation 4415. The PM chip breaker geometry is optimized for controlled chip evacuation during steel and cast iron machining. This insert is part of the CoroTurn 107 series and is installed by machinists and CNC operators in production and job-shop turning environments.

This insert is suited for turning operations on steel and cast iron workpieces at moderate to high cutting speeds. It fits CoroTurn 107 toolholders that accept VBMT-style inserts with a screw and clamp holding method. The neutral hand orientation makes it compatible with both right- and left-hand approaches depending on toolholder configuration. Typical applications include continuous and light interrupted cuts on low-alloy steel, carbon steel, and gray cast iron components in both residential shop and industrial production settings.

Key Features

• 35-degree diamond insert shape (Insert Shape Code V) for positive-geometry, low-cutting-force turning
• CVD multilayer coating: Al2O3, TiN, and TiCN for wear resistance and thermal stability on steel and cast iron
• 1/32-inch (0.0313 inches) corner radius balances edge strength and surface finish
• PM chip breaker geometry engineered for steel turning with predictable chip control
• 5-degree relief angle (Clearance Code B) reduces flank wear in continuous turning cuts
• Neutral hand orientation supports flexible toolholder pairing

Compatibility

Designed for use in CoroTurn 107 series toolholders accepting VBMT-style inserts with screw and clamp holding. ISO code VBMT 16 04 08-PM 4415. Primary workpiece material is steel (ISO material code P); secondary workpiece material is cast iron (ISO material code K).

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Power down and lock out the machine spindle before seating or removing inserts. Use the correct torque driver and manufacturer-specified insert screw to secure the insert in the pocket — do not over-tighten by feel alone. Inspect the insert seat and chip groove for debris before installation to avoid seating errors that cause premature edge failure.