Seco 03093854 Turning Insert CNMG431-M3 TP3501 Carbide

Product Description

The SECO 03093854 is a CNMG431-M3 style indexable turning insert designed for steel and stainless steel machining in general turning, facing, and boring operations. The insert is manufactured from solid carbide and carries a CVD-applied Duratomic multilayer coating consisting of TiCN, Al2O3, and Cr, which provides wear resistance and thermal stability at elevated cutting speeds. The 80-degree diamond shape (C) with a negative rake and 0-degree relief angle provides a strong cutting edge geometry suited to interrupted and continuous cuts in medium to heavy material grades P20, P30, and P40.

This insert is suited for use in CNC turning centers and manual lathes performing roughing and semi-finishing operations on steel and stainless steel workpieces. The M3 chip breaker geometry is optimized for moderate chip control across a broad feed range. With four usable cutting edges per insert, it delivers a low cost-per-edge in high-volume production environments. It is appropriate for shops running ISO P and M category materials and requiring consistent performance across facing, boring, and external turning cycles.

Key Features

• Duratomic CVD multilayer coating: TiCN, Al2O3, and Cr for extended tool life on steel
• Four cutting edges per insert for low cost-per-edge in production use
• M3 chip breaker geometry for moderate feed range chip control
• Compatible with clamp, pin, and lever lock insert holding methods
• Chamfered and honed cutting edge style for edge strength and stability
• Conforms to ANSI and ISO standards; ISO code CNMG120404-M3

Compatibility

Designed as an OEM-style replacement insert for toolholders accepting CNMG431 style inserts with clamp, pin, or lever lock holding. Primary workpiece material is steel (ISO P: P20, P30, P40); secondary workpiece material is stainless steel (ISO M). Multi-use application includes boring, facing, and turning.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Seat the insert fully against the toolholder pocket before tightening the clamping element to avoid seating errors that cause premature edge failure. Follow toolholder manufacturer torque and clamping guidelines; do not overtighten lever lock or pin clamp fasteners.