Sandvik Coromant 7859063 Turning Insert DNMG433-PF 4415

Product Description

The SANDVIK COROMANT 7859063 is a DNMG433-PF 4415 turning insert engineered for precision metal cutting in CNC lathe and turning center applications. The insert is manufactured from solid carbide and features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, which improves wear resistance and extends tool life across a range of workpiece materials. It carries a 55-degree diamond shape (Insert Shape Code D) with a neutral hand orientation and a 1.19 mm (0.0469 inch) corner radius. The ISO designation is DNMG 15 04 12-PF 4415. This insert is installed by CNC machinists and toolroom technicians working in production or job-shop environments.

This insert is suited for turning operations on cast iron and ferrous workpiece materials, as indicated by primary workpiece material code K and secondary code P. The T-Max P series designation places it in a platform designed for external and internal turning with clamp or screw holding methods. The PF chip breaker geometry is optimized for finishing passes where controlled chip formation and surface finish are priorities. Typical applications include light-to-moderate depth-of-cut turning on ferrous alloys in both residential shop and industrial production settings.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for wear resistance and thermal stability
• 55-degree diamond insert shape (Code D) with neutral hand orientation
• 1.19 mm (0.0469 inch) corner radius for finishing geometry
• 0.500 inch (12.70 mm) inscribed circle; insert thickness 0.1875 inch (4.76 mm)
• PF chip breaker geometry designed for finish turning applications
• Compatible with clamp and screw insert holding methods; Tolerance Code M, Clearance Code N

Compatibility

Designed for use in toolholders accepting DNMG 15 04 insert style with clamp or screw holding. ISO code DNMG 15 04 12-PF 4415. Verify toolholder seat geometry and clamping system before installation.

Installation Notes

Insert installation should be performed by a qualified machinist with the machine fully powered down and the spindle locked. Seat the insert firmly in the toolholder pocket, ensuring the clamp or screw torque is applied per the toolholder manufacturer specification. Inspect the insert seat for chips or debris before seating a new insert, as contamination can cause improper seating and premature edge failure. Follow shop safety procedures and applicable machinery guarding standards when indexing or replacing inserts.