Seco 02960538 Turning Insert CNMG431-M5 TP2501 Carbide

Product Description

The SECO 02960538 is a CNMG431-M5 indexable turning insert designed for general turning, facing, and boring operations on CNC lathes and turning centers. It features a solid carbide substrate with a Duratomic CVD multilayer coating — TiCN, Al2O3, and Cr — in the TP2501 grade, targeting steel, stainless steel, and cast iron workpiece materials. The insert has an 80-degree diamond shape (C), a negative rake geometry, and a 0-degree relief angle (clearance code N). The inscribed circle measures 0.5000 inches, the corner radius is 0.0157 inches (1/64 inch), and the insert thickness is 0.1874 inches (3/16 inch). The M5 chip breaker geometry with a chamfered and honed cutting edge style supports medium-range material grades P10 through P35. Licensed machinists and toolroom technicians are the primary installers.

This insert is suited for medium to semi-finishing turning operations on steel and stainless steel components in both job shop and production environments. The four cutting edges per insert and multi-use application capability — boring, facing, and turning — make it a versatile tool for general lathe work. It is compatible with CNMG-style toolholders that accept a clamp, pin, or lever-lock insert holding method. The maximum depth of cut is 0.4921 inches, and the insert length is 0.5079 inches, placing it in the 0.5000 to 0.6000 inch length range. Secondary workpiece materials include stainless steel and cast iron. The ISO code for this insert is CNMG120404-M5.

Key Features

• Duratomic CVD coating (TiCN, Al2O3, Cr) in TP2501 grade for extended tool life on steel and stainless
• 80-degree diamond insert shape with negative rake and 0-degree relief for stable, rigid cutting action
• M5 chip breaker geometry with chamfered and honed edge for consistent chip control in medium-cut applications
• Four indexable cutting edges per insert for maximized value per tool
• Compatible with clamp, pin, and lever-lock toolholder systems
• Meets ANSI and ISO standards; ISO designation CNMG120404-M5

Compatibility

Designed for use in CNMG-style turning toolholders that accept clamp, pin, or lever-lock holding methods. Suitable for steel (P10, P20, P30, P35), stainless steel (M grade), and cast iron (K grade) workpiece materials. Multi-use applications include turning, facing, and boring.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Power down and de-energize the machine tool before indexing or replacing inserts. Use the appropriate torque wrench and manufacturer-recommended clamping hardware to seat the insert securely in the toolholder pocket — do not overtighten by hand estimation alone. Inspect the insert seat and shim for damage before installing a new cutting edge.