Seco 03093915 Turning Insert CNMG431-M5 TP3501 Carbide

Product Description

The SECO 03093915 is a CNMG431-M5 series indexable turning insert designed for general-purpose metal cutting operations including boring, facing, and turning. It is manufactured from solid carbide with a CVD-applied Duratomic multilayer coating of TiCN, Al2O3, and Cr, delivering wear resistance and thermal stability under continuous cutting loads. The insert features an 80-degree diamond shape with a negative rake angle, a 0.5 inch inscribed circle, and a 0.0157 inch corner radius. With four usable cutting edges and an M5 chip breaker geometry with a chamfered and honed cutting edge style, this insert is suited for medium to heavy turning applications on steel and stainless steel workpieces.

This insert is intended for use on CNC lathes and turning centers in production machining environments. The M5 chip breaker is optimized for steel (ISO P) and stainless steel (ISO M) workpiece materials across material grades P20, P30, and P40. The neutral hand orientation makes it compatible with a wide range of CNMG-style toolholders. Typical applications include roughing and semi-finishing passes in job shop and production settings. The insert is held via clamp, pin, or lever lock toolholding systems.

Key Features

• CVD Duratomic multilayer coating: TiCN, Al2O3, and Cr for extended tool life on steel and stainless steel
• 80-degree diamond insert shape with negative rake for stable, secure cutting geometry
• M5 chip breaker with chamfered and honed cutting edge for reliable chip control in medium to heavy cuts
• Four usable cutting edges per insert to maximize cost-per-edge value
• Compatible with clamp, pin, and lever lock toolholding systems
• Conforms to ANSI and ISO standards; ISO designation CNMG120404-M5

Compatibility

Designed for use in CNMG-style toolholders that accept clamp, pin, or lever lock holding methods. Primary workpiece materials are steel (ISO P code: P20, P30, P40) and stainless steel (ISO M). Multi-use application across boring, facing, and turning operations. Conforms to ANSI and ISO insert standards under industry standard number CNMG431-M5 and ISO code CNMG120404-M5.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the machine spindle is fully stopped and the toolholder is secured before indexing or replacing inserts. Use the appropriate torque wrench and manufacturer-specified hardware for the clamping method in use; do not overtighten seating screws by feel alone. Verify insert seating and toolholder pocket condition before resuming cutting operations.