Seco 02956325 Turning Insert VBMT331-MF2 TP2501 Carbide

Product Description

The SECO 02956325 is a solid carbide turning insert in the VBMT-MF2 series, designed for precision metal removal on CNC lathes and turning centers. It carries the TP2501 grade designation with a Duratomic CVD coating stack of TiCN, Al2O3, and Cr, delivering thermal resistance and edge stability across a range of cutting conditions. The insert features a 35-degree diamond shape, a neutral hand orientation, and an MF2 chip breaker geometry with a chamfered and honed cutting edge style. With 2 cutting edges and a 0.0157-inch corner radius, it suits finishing and medium turning passes on steel and stainless steel. Machinists and CNC operators install this insert as part of a screw-held toolholder system.

This insert is rated primarily for steel (ISO material code P, grades P10 through P35) and secondarily for stainless steel and cast iron (ISO codes M and K). Its MF2 chip breaker geometry is optimized for facing, profiling, back turning, and standard turning operations. The 3/8-inch inscribed circle and 3/16-inch insert thickness fit VBMT-style toolholders conforming to ANSI and ISO standards. The ISO designation for this insert is VBMT160404-MF2, and the industry standard number is VBMT331-MF2, which can be used to cross-reference compatible toolholder pockets.

Key Features

• Duratomic CVD coating (TiCN, Al2O3, Cr) for extended tool life on steel and stainless workpieces
• 35-degree diamond insert shape with 2 cutting edges for economical indexing
• MF2 chip breaker with chamfered and honed edge for controlled chip formation in finishing and medium cuts
• Neutral hand orientation compatible with standard VBMT screw-held toolholders
• Maximum depth of cut up to 0.6142 inches with positive rake geometry
• Meets ANSI and ISO standards; ISO code VBMT160404-MF2

Compatibility

Designed to seat in VBMT-style screw-held toolholders conforming to ANSI and ISO insert pocket standards. The ISO designation VBMT160404-MF2 and industry standard number VBMT331-MF2 can be used to confirm toolholder pocket compatibility. Suitable for primary use on steel workpieces and secondary use on stainless steel and cast iron.

Installation Notes

Installation is performed by machinists or CNC tooling technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Seat the insert fully in the toolholder pocket and secure with the clamping screw to the torque specified by the toolholder manufacturer. Inspect the pocket and screw threads for wear or debris before seating a new insert to ensure proper clamping force and runout.