Seco 02959923 Turning Insert CNMG643-M3 TP1501 Carbide

Product Description

The SECO 02959923 is a CNMG643-M3 series indexable turning insert designed for medium-duty machining of steel, cast iron, and hard materials. It carries the TP1501 manufacturer grade and features a CVD-applied Duratomic multilayer coating — TiCN, Al2O3, and Cr — engineered to extend tool life under continuous and interrupted cutting conditions. The insert geometry is negative rake with a neutral hand orientation, an 80-degree diamond shape, and an M3 chipbreaker with a chamfered and honed cutting edge. With four usable cutting edges and a 3/64-inch corner radius, this insert suits high-productivity roughing and semi-finishing passes where consistent chip control and thermal resistance are critical.

This insert is rated for boring, facing, and turning operations. The primary target workpiece material is steel (ISO code P), with secondary suitability for cast iron (K) and hard materials (H). Corresponding ISO material grades are P10 and P20, making it well-matched for general steel turning in both production-floor and job-shop environments. The CNMG-M3 series is commonly used in rigid CNC lathes and turning centers where clamp, pin, or lever-lock toolholders accept standard CNMG geometry inserts. Maximum depth of cut is up to 0.7126 inches, giving the insert meaningful range across roughing and semi-finishing applications.

Key Features

• CVD Duratomic multilayer coating (TiCN, Al2O3, Cr) for extended wear resistance and thermal stability
• 80-degree diamond insert shape with negative rake and neutral hand — broad toolholder compatibility
• M3 chipbreaker with chamfered and honed edge geometry for reliable chip control in steel and cast iron
• Four cutting edges per insert for maximized cost-per-edge value
• Compatible with clamp, pin, and lever-lock holding methods
• Meets ANSI and ISO standards; ISO code CNMG190612-M3

Compatibility

Designed for use in CNMG-style turning toolholders that accept clamp, pin, or lever-lock insert retention. Suitable for CNC lathes and turning centers running steel (P10, P20), cast iron (K), and hard material (H) workpieces. Industry standard number CNMG643-M3; ISO equivalent CNMG190612-M3.

Installation Notes

Installation is performed by a machinist or toolroom technician during toolholder setup on a CNC lathe or turning center. Power down and lock out the spindle before indexing or replacing inserts. Use the appropriate torx or hex key as specified by the toolholder manufacturer to seat the insert securely — do not overtighten the clamping screw. Inspect the insert pocket and clamping components for wear or debris before seating a new edge.