Iscar 5507309 Wnmg 431-TF IC9250 Carbide Turning Insert

Product Description

The ISCAR 5507309 is a WNMG 431-TF IC9250 solid carbide turning insert from the Isoturn series, designed for precision external and internal turning operations on stainless steel and steel workpieces. Manufactured to ISO 13399 standards, this insert features a CVD-applied TiCN and Al2O3 multilayer coating that extends tool life in demanding cutting environments. The 80-degree trigon shape with a positive rake geometry and N-type clearance supports stable chip control across a range of feeds and depths. A TF chip breaker geometry is built in for effective chip evacuation. Licensed machinists and CNC operators working in job shops or production environments are the primary users.

This insert is suited for turning applications on stainless steel and carbon steel in both roughing and semi-finishing passes. The TF chip breaker makes it effective at moderate feed rates where controlled chip formation is critical. The insert also supports boring operations, making it a multi-use tooling option for facilities running mixed operations. It fits standard WNMG-style toolholders with clamp and pin holding methods.

Key Features

• IC9250 grade solid carbide with CVD-applied TiCN and Al2O3 multilayer coating for wear resistance
• 80-degree trigon insert shape with positive rake for reduced cutting forces
• TF chip breaker geometry for reliable chip control on steel and stainless steel
• Maximum depth of cut: 3.99 mm (0.157 inches)
• Compatible with clamp and pin insert holding methods
• Multi-use capability including turning and boring per ISO 13399

Compatibility

Designed for use in standard WNMG-style toolholders that accept clamp and pin holding. Suitable for primary workpiece materials designated ISO material codes M (stainless steel) and P (steel).

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and the turret is locked before seating or indexing the insert. Verify the toolholder pocket and seating surface are clean and free of chips before clamping. Follow the toolholder manufacturer torque specifications for the clamping screw — do not overtighten, as this can fracture the insert.