Seco 02959912 CNMG432-M3 TP0501 Turning Insert Carbide

Product Description

The SECO 02959912 is a CNMG432-M3 indexable turning insert manufactured from solid carbide and coated via CVD with a multilayer Duratomic coating of TiCN, Al2O3, and Cr. The insert features an 80-degree diamond shape with a neutral hand orientation and a negative rake angle. It has 4 cutting edges, a 0.5000-inch inscribed circle, a 0.0315-inch corner radius, and a 0.1874-inch insert thickness. The chamfered and honed cutting edge style combined with the M3 chip breaker geometry makes this insert well suited for moderate to general-purpose turning applications in steel and cast iron. Licensed machinists and CNC operators install this insert in compatible toolholders on lathes and turning centers.

This insert is designed for multi-use applications including boring, facing, and turning. The primary workpiece material target is steel (ISO material code P), with cast iron (ISO material code K) as a secondary application. It conforms to ANSI and ISO standards and carries the ISO designation CNMG120408-M3 and industry standard number CNMG432-M3. The TP0501 grade with Duratomic CVD coating is optimized for material grades P01 and P10, making it a strong choice for finishing to light roughing passes on carbon and alloy steels.

Key Features

• Duratomic CVD multilayer coating: TiCN, Al2O3, and Cr for extended wear resistance on steel and cast iron
• 80-degree diamond insert shape with 4 indexable cutting edges for cost-effective tooling management
• M3 chip breaker geometry suited for boring, facing, and turning operations
• Chamfered and honed cutting edge style for stable entry and reduced edge chipping
• Compatible with clamp, pin, and lever lock holding methods for broad toolholder compatibility
• Negative rake, neutral hand orientation supports use in a wide range of turning center setups

Compatibility

Designed as a direct-fit replacement for CNMG432-M3 series toolholders that accept clamp, pin, or lever lock holding methods. Conforms to ANSI and ISO CNMG120408-M3 standard geometry for use with compatible turning center toolholders. No specific OEM model numbers were provided in the product data.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torque wrench and clamping hardware specified by the toolholder manufacturer — do not over-torque the clamping screw as this can fracture the insert. Inspect the toolholder seat and seating surfaces for wear or debris before seating the new insert.