Seco 02959887 Turning Insert DNMG432-M6 TP2501 Carbide

Product Description

The SECO 02959887 is a DNMG432-M6 indexable turning insert manufactured from solid carbide and coated via CVD with a multilayer Duratomic coating system consisting of TiCN, Al2O3, and Cr. Carrying manufacturer grade TP2501, this insert features a 55-degree diamond shape, neutral hand orientation, and a honed cutting edge. With four cutting edges and a 0.0315-inch corner radius, it delivers consistent performance in general turning applications. The M6 chip breaker geometry is engineered for efficient chip control across a range of feed rates and depths of cut, making it well-suited to volume machining environments operated by CNC machinists and turning specialists.

This insert is designed primarily for machining steel (ISO material code P) and is rated for secondary use on stainless steel (M) and cast iron (K), covering material grades P10, P20, P30, and P35. Typical applications include back turning, boring, facing, and general OD turning on CNC lathes and turning centers in both job shop and production environments. The DNMG style with clamp, pin, or lever-lock holding methods fits a wide range of standard toolholders used in production turning operations.

Key Features

• Duratomic CVD multilayer coating (TiCN, Al2O3, Cr) for extended tool life on steel and stainless
• 55-degree diamond insert shape (Shape Code D) with neutral hand for flexible mounting
• M6 chip breaker geometry supports back turning, boring, facing, and turning operations
• Four usable cutting edges per insert for reduced per-edge tooling cost
• Honed cutting edge style reduces micro-chipping on interrupted cuts
• Compatible with clamp, pin, and lever-lock toolholder holding methods

Compatibility

Designed for use in DNMG-style toolholders that accept a 1/2-inch inscribed circle insert with a 0.2028-inch hole diameter and clamp, pin, or lever-lock retention. Industry standard number DNMG432-M6 (ISO code DNMG150408-M6) ensures cross-reference fitment with ANSI- and ISO-compliant tooling systems.

Installation Notes

Installation is performed by CNC machinists or tooling setup technicians following standard indexable insert change-out procedures. Always power down and lock out the machine spindle before indexing or replacing inserts. Seat the insert fully in the pocket and confirm the holding mechanism is secure before resuming cuts. Inspect the insert pocket and shim for wear or damage each time the insert is indexed to maintain dimensional accuracy.