Seco 02959914 Turning Insert CNMG432-M3 TP2501 Carbide

Product Description

The SECO 02959914 is a CNMG432-M3 series indexable turning insert designed for metal-cutting operations on CNC lathes and turning centers. It features a solid carbide substrate with a Duratomic CVD multilayer coating of TiCN, Al2O3, and Cr for extended tool life and heat resistance. The insert carries a TP2501 manufacturer grade and is classified for primary use on steel (ISO P) with secondary capability on stainless steel and cast iron. With 4 cutting edges, an 80-degree diamond shape, a chamfered and honed cutting edge style, and the M3 chip breaker geometry, this insert is suited for finishing to medium roughing passes. Licensed machinists and CNC operators install and index this insert in standard CNMG-compatible toolholders.

This insert is rated for boring, facing, and turning applications. Its negative rake, neutral hand orientation, and 0-degree relief angle (clearance code N, tolerance code M) make it compatible with rigid clamping systems including clamp, pin, and lever-lock toolholder styles. Primary workpiece material is steel across material grades P10, P20, P30, and P35. Secondary workpiece materials include stainless steel (ISO M) and cast iron (ISO K). The M3 chip breaker geometry handles a wide chip load range, making it effective across varying depths of cut in production turning environments.

Key Features

• Duratomic CVD coating (TiCN, Al2O3, Cr) for thermal stability and wear resistance on steel
• 4 cutting edges per insert with chamfered and honed edge preparation
• M3 chip breaker geometry suitable for boring, facing, and turning
• Compatible with clamp, pin, and lever-lock toolholder clamping methods
• Negative rake, 80-degree diamond shape with 0.0315-inch corner radius
• Meets ANSI and ISO standards; ISO code CNMG120408-M3

Compatibility

Designed for use in CNMG-style toolholders that accept clamp, pin, or lever-lock clamping. Compatible with applications involving steel (P10, P20, P30, P35), stainless steel (ISO M), and cast iron (ISO K) workpiece materials. Industry standard number CNMG432-M3; ISO code CNMG120408-M3.

Installation Notes

Installation and indexing should be performed by a qualified machinist or CNC operator with the machine fully powered down and in a safe state. Seat the insert fully in the toolholder pocket and secure with the specified clamping method before engaging the workpiece. Inspect the insert seat and clamping components for wear or debris before each index. Follow the toolholder manufacturer torque guidance for clamping screws to avoid insert cracking or poor seating.