Sandvik Coromant 6136003 DNMG431XF GC15 Turning Insert

Product Description

The SANDVIK COROMANT 6136003 is a solid carbide turning insert in the DNMG431XF GC15 designation, designed for precision external turning operations on CNC lathes and turning centers. Part of the T-Max P series, this insert features a PVD-applied TiAlN and AlCr2O3 multilayer coating that supports high cutting speeds and thermal resistance. The 55-degree diamond shape (Insert Shape Code D) provides two usable cutting edges per face for a total of four cutting edges. With a 0.5-inch inscribed circle and a 0.0157-inch corner radius, it is built for finishing and semi-finishing passes where edge sharpness and surface finish are critical.

This insert is rated primarily for stainless steel (ISO material code M) and secondarily for superalloys and titanium (ISO material code S). It is suited for shops and field machinists running tight-tolerance turning work on aerospace, medical, and industrial components. The XF chip breaker geometry is optimized for low-to-medium feed rates typical of finishing cuts on difficult-to-machine materials. The neutral hand orientation allows use in standard DNMG-compatible toolholders without directional restriction.

Key Features

• PVD-coated TiAlN and AlCr2O3 multilayer finish for thermal resistance and edge durability on stainless steel and superalloys
• XF chip breaker geometry optimized for finishing and semi-finishing cuts at low-to-medium feed rates
• 55-degree diamond insert shape with four total cutting edges for cost-efficient indexing
• Maximum depth of cut of 0.5945 inches (15.10 mm) for versatile pass depth on turning operations
• Clamp and pin holding method compatible with standard DNMG toolholder systems
• Neutral hand orientation for flexible mounting in standard DNMG-style toolholders

Compatibility

Designed as an OEM-style replacement or direct-fit insert for toolholders accepting DNMG431 geometry inserts with clamp and pin holding. ISO designation DNMG150404XFGC15 can be used to cross-reference to compatible toolholder systems.

Installation Notes

Indexable turning inserts should be installed and indexed by a qualified machinist or CNC operator with the machine fully stopped and the spindle locked. Use the correct torque wrench and clamp hardware specified by the toolholder manufacturer to secure the insert without cracking the carbide. Inspect the insert seat and clamp for chips or debris before seating a new edge. Always verify feed rate and cutting speed parameters against the grade and workpiece material before resuming cuts.