Seco 02959924 CNMG643-M3 TP2501 Turning Insert Carbide

Product Description

The SECO 02959924 is a solid carbide turning insert in the CNMG-M3 series, designed for precision metal removal in steel, stainless steel, and cast iron applications. It carries the industry standard designation CNMG643-M3 and ISO code CNMG190612-M3. The insert features a CVD-applied Duratomic multilayer coating consisting of TiCN, Al2O3, and Cr, which supports thermal resistance and edge wear. The 80-degree diamond shape provides a strong cutting geometry with a neutral hand orientation, making it suitable for boring, facing, and turning operations. This is a multi-tipped insert with 4 cutting edges and a chamfered and honed cutting edge style for controlled entry into the workpiece.

This insert is suited for medium to roughing cuts in ISO P (steel) material grades P10 through P35, with secondary capability in ISO M (stainless steel) and ISO K (cast iron). The M3 chip breaker geometry is optimized for moderate feed rates and general-purpose turning applications in both production and job-shop environments. The insert is held via clamp, pin, or lever lock methods, making it compatible with a wide range of CNMG-style toolholders used in CNC lathes and boring bars. This part is sold individually with a minimum order quantity of 10 units.

Key Features

• CVD Duratomic multilayer coating: TiCN, Al2O3, and Cr for extended tool life in steel cutting
• 80-degree diamond insert shape with negative rake and 0-degree relief angle for robust edge strength
• M3 chip breaker for reliable chip control across a range of feeds and depths
• 4 cutting edges per insert for maximum value per unit
• Compatible with clamp, pin, and lever lock holding methods
• Chamfered and honed cutting edge style reduces edge chipping on entry

Compatibility

Designed as an OEM-style replacement insert for CNMG-style toolholders accepting CNMG643 geometry inserts per ANSI and ISO standards. Compatible with boring, facing, and turning applications targeting steel (P10-P35), stainless steel, and cast iron workpiece materials.

Installation Notes

Installation is performed by qualified machinists or tooling technicians following standard CNC lathe or boring bar setup procedures. Power down and lock out the machine spindle before seating or indexing the insert. Ensure the toolholder pocket and seating surfaces are clean and free of chips before clamping. Follow the toolholder manufacturer's specified clamping torque and insert retention method — clamp, pin, or lever lock — as appropriate for the holder design.