Sandvik Coromant 8019381 Turning Insert Dnmg 15 04 04-PMC 4425

Product Description

The SANDVIK COROMANT 8019381 is a DNMG-style indexable turning insert designed for precision metal cutting on CNC lathes and turning centers. Manufactured from solid carbide and finished with a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, this insert is engineered primarily for steel machining applications. The D-shaped insert carries a 55-degree diamond profile, a 0.5000-inch inscribed circle, and a 0.0156-inch corner radius. The neutral hand orientation makes it compatible with standard DNMG toolholders. Installation is performed by licensed machinists and CNC tooling technicians during scheduled insert indexing or replacement cycles.

This insert is suited for medium to finishing turning operations on steel workpieces, including general-purpose external and internal turning where consistent surface finish and tool life are priorities. The PMC chip breaker geometry is optimized for steel cutting, providing reliable chip control across a range of feeds and depths of cut. Secondary workpiece material application falls within the K material group. The insert fits standard DNMG 15 04 toolholder pockets and is held in place by clamp or screw mounting methods.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for wear resistance and heat management on steel
• PMC chip breaker geometry for controlled chip evacuation during steel turning
• 0.0156-inch corner radius for medium to finish turning surface quality
• Neutral hand insert orientation compatible with standard DNMG clamp and screw holders
• ISO designation DNMG 15 04 04-PMC 4425 for direct cross-reference sourcing
• Solid carbide substrate with manufacturer grade 4425 for extended tool life in steel applications

Compatibility

Designed as a direct-fit replacement for DNMG 15 04 toolholder pockets using clamp or screw holding methods. ISO code DNMG 15 04 04-PMC 4425 may be used for cross-reference with compatible toolholders from manufacturers supporting the DNMG insert standard.

Installation Notes

Insert indexing and replacement should be performed by a qualified machinist or CNC tooling technician with the machine powered down and the spindle fully stopped before servicing the toolholder. Clamp and screw torque should follow the toolholder manufacturer specifications. Inspect the toolholder pocket and seating surface for damage or debris before seating the new insert to ensure proper support and accurate positioning.