Seco 03096572 TNMG431-M5 TP3501 Carbide Turning Insert

Product Description

The SECO 03096572 is a TNMG431-M5 triangular carbide turning insert in manufacturer grade TP3501, designed for precision metal-cutting operations on CNC and manual lathes. It features a CVD-applied Duratomic multilayer coating — TiCN, Al2O3, and Cr — engineered to extend tool life when cutting steel and stainless steel. The insert carries a 0.5000-inch inscribed circle, a 0.0157-inch corner radius, and a 60-degree included angle with a negative rake geometry. The M5 chip breaker profile and chamfered-and-honed cutting edge style make this insert well suited to medium and heavy interrupted or continuous cuts across a range of depths. Licensed machinists and CNC operators install and index this insert in standard TNMG-compatible toolholders.

This insert is rated for primary use on steel workpiece materials (ISO material code P, grades P20, P30, and P40) and secondary use on stainless steel (ISO code M). Suitable multi-use applications include turning, facing, boring, and back turning. With six cutting edges per insert and a maximum depth of cut of 0.8268 inches, it is effective in both roughing and semi-finishing passes on medium-to-large diameter workpieces in job shop and production environments. The insert conforms to ANSI and ISO standards and carries the ISO designation TNMG220404-M5.

Key Features

• CVD Duratomic multilayer coating (TiCN, Al2O3, Cr) for extended wear resistance on steel and stainless steel
• Six cutting edges per insert with neutral hand orientation for flexible toolholder use
• M5 chip breaker geometry with chamfered-and-honed cutting edge for controlled chip evacuation
• Maximum depth of cut 0.8268 inches — suitable for roughing and semi-finishing passes
• Compatible with clamp, pin, and lever lock insert-holding methods
• Conforms to ANSI and ISO standards; ISO designation TNMG220404-M5

Compatibility

Designed for use in TNMG-series toolholders that accept a triangular insert with a 0.5000-inch inscribed circle, 0.2028-inch hole diameter, and clamp, pin, or lever lock holding methods. Confirm toolholder seat geometry and clamping style before installation. Compatible insert industry standard number is TNMG431-M5.

Installation Notes

Indexable carbide inserts are installed and indexed by qualified machinists or CNC tool-setup personnel. Power down and lock out the machine spindle before changing or indexing any insert. Use the correct torque wrench and seating screw specified by the toolholder manufacturer — do not over-tighten the clamping screw, as this can fracture the insert. Inspect the toolholder pocket and seating surfaces for chips or wear before seating a new insert.