Seco 02615933 Vnmg 331-MF4 Turning Insert TS2000 Carbide

Product Description

The SECO 02615933 is a VNMG 331-MF4 series turning insert manufactured from solid carbide and coated with a multilayer TiAlN and TiN PVD coating under the TS2000 grade designation. The insert features a 35-degree diamond shape with a negative rake geometry, a 3/8-inch inscribed circle, and a 1/64-inch corner radius. It carries four cutting edges and uses an MF4 chip breaker profile designed for medium-finish turning operations. Machinists and CNC turning specialists install this insert into compatible toolholders for precision work on stainless steel, superalloys, and titanium. The chamfered and honed cutting edge style supports controlled chip formation and edge stability under demanding cutting conditions.

This insert is suited for medium-finish and semi-finish turning applications in both production shop and job shop environments. Primary workpiece materials are stainless steel, superalloys, and titanium, with secondary suitability for steel, cast iron, and hard materials. Typical operations include back turning, facing, profiling, and general OD turning. The neutral hand orientation allows use in both right-hand and left-hand toolholder configurations. The insert is compatible with pin, clamp, and lever-lock holding methods, giving it broad flexibility across common VNMG-style toolholder systems.

Key Features

• TS2000 grade with multilayer TiAlN and TiN PVD coating for wear resistance on stainless and titanium
• MF4 chip breaker geometry optimized for medium-finish turning with positive chip control
• Four usable cutting edges per insert reduces per-edge tooling cost
• Chamfered and honed cutting edge style improves edge toughness and surface finish
• Neutral hand orientation fits both right-hand and left-hand toolholder setups
• Compatible with pin, clamp, and lever-lock insert retention methods
• Meets ANSI and ISO standards; ISO code VNMG160404-MF4

Compatibility

Designed for use in VNMG-style toolholders that accept a 35-degree diamond insert with a 3/8-inch inscribed circle, 3/16-inch insert thickness, and 0.15-inch hole diameter. Compatible with pin, clamp, and lever-lock holding methods. Suitable for back turning, facing, profiling, and turning operations on stainless steel, superalloys, titanium, steel, cast iron, and hard materials per ISO material codes M, S, P, K, and H.

Installation Notes

Installation is performed by a machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or replacing inserts. Use the correct torque driver or clamp screw specified by the toolholder manufacturer to secure the insert — do not overtighten, as this can fracture the carbide substrate. Inspect the insert pocket and seating surfaces for chips or debris before installing a new edge.