Sandvik Coromant 5909079 Turning Insert VNGG331-SGF 1105

Product Description

The SANDVIK COROMANT 5909079 is a solid carbide turning insert designed for precision external turning operations on CNC and manual lathes. Manufactured to VNGG style geometry, it features a 35-degree diamond shape with a neutral hand orientation and a TiAlN PVD coating optimized for heat resistance and wear performance. The insert carries a 3/8 inch inscribed circle, a 0.0945 inch insert length, and a 1/64 inch corner radius. It is suited for machining stainless steel as its primary workpiece material, with secondary applications in superalloys and titanium. Installation and use are managed by qualified CNC machinists and turning specialists.

This insert fits within the SANDVIK COROMANT T-Max P series tooling system and is intended for finishing and semi-finishing operations on difficult-to-machine materials including austenitic stainless steel, heat-resistant superalloys, and titanium alloys. The SGF chip breaker geometry supports controlled chip formation in these materials, reducing built-up edge and improving surface finish consistency. It is typically used in production turning environments where tool life and dimensional repeatability are critical requirements.

Key Features

• VNGG insert style with 35-degree diamond shape for precision profiling and finishing
• TiAlN PVD coating for enhanced heat resistance in stainless steel and superalloy machining
• SGF chip breaker designed for controlled chip evacuation in difficult-to-machine materials
• Neutral hand orientation for flexible tool holder compatibility
• Four cutting edges per insert for extended tool life and cost efficiency
• Clamp and pin holding method for secure seating in compatible toolholders

Compatibility

Designed for use with SANDVIK COROMANT T-Max P series toolholders that accept VNGG style inserts. Primary workpiece materials are stainless steel (ISO code M) with secondary compatibility for superalloys and titanium (ISO code S). ISO designation for this insert is VNGG160404-SGF 1105.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist following the toolholder manufacturer's torque specifications for the clamp screw. Ensure the insert pocket is clean and free of chips or debris before seating to prevent microfracture at the cutting edge. Always index or replace inserts at recommended wear limits to maintain dimensional accuracy and prevent workpiece damage. Follow shop safety procedures and machine lockout protocols when changing inserts on live equipment.