Tungaloy 6860438 Dgm Grooving Insert AH725 Carbide Tungcut

Product Description

The TUNGALOY 6860438 is a solid carbide grooving insert in the TungCut series, designed for precision grooving and parting operations on CNC lathes and turning centers. This insert carries the AH725 manufacturer grade and features a PVD coating for improved wear resistance and edge integrity at elevated cutting temperatures. The neutral hand orientation and screw-holding method make it compatible with a range of standard TungCut toolholders. With a 7-degree positive rake angle and a 0.30 mm (0.0118 inch) corner radius, it delivers clean, controlled chip formation in demanding grooving applications.

This insert is suited for grooving and cutoff work in light industrial and production machining environments. The DGM insert style and size code 4030 target applications where consistent groove geometry and surface finish are required. Stainless steel is a rated secondary workpiece material, making this insert a practical choice for shops machining corrosion-resistant alloys alongside standard steel and aerospace-grade materials. Licensed machinists and CNC tooling technicians are the primary end users for this product.

Key Features

• AH725 grade solid carbide substrate with PVD coating for extended tool life
• Positive 7-degree rake angle promotes efficient chip evacuation and reduced cutting forces
• 0.30 mm corner radius for precise groove geometry control
• Screw-holding method ensures secure, repeatable insert indexing
• Neutral hand orientation for flexible toolholder compatibility
• Rated for stainless steel, steel, and aerospace material workpieces per ISO material codes M, P, and S

Compatibility

Designed for use in TungCut series grooving and cutoff toolholders accepting DGM style inserts with size code 4030. Specific toolholder compatibility should be confirmed against TUNGALOY TungCut system documentation prior to ordering.

Installation Notes

This insert is installed and indexed by a licensed machinist or CNC tooling technician. Power down and lock out the machine spindle before changing inserts. Use the appropriate torx or hex key to secure the clamping screw to the toolholder manufacturer-specified feel - do not overtighten, as this can fracture the carbide insert. Verify insert seating and runout before resuming cutting operations.