Iscar 5550468 TNMG431TF IC8250 Carbide Turning Insert

Product Description

The ISCAR 5550468 is a TNMG431TF-geometry solid carbide turning insert in the IC8250 manufacturer grade, designed for external and internal turning operations on CNC and manual lathes. The insert features a CVD-applied TiCN and Al2O3 multilayer coating that provides wear resistance and thermal stability during continuous and interrupted cuts. With a 60-degree triangular shape, a 0.5-inch inscribed circle, and a 1/64-inch corner radius, it is suited for medium to finishing passes. Holding method is clamp and pin, and the positive rake geometry reduces cutting forces on the workpiece. Licensed machinists and CNC setup technicians install this insert in ISO-standard toolholders.

The ISCAR 5550468 is intended for turning ferrous and stainless steel workpiece materials, corresponding to ISO material groups P and M. It is a fit for production turning environments where consistent surface finish and tool life are priorities. The TF chip breaker geometry handles chip control across a range of feed rates and depths of cut up to 3.50 mm (0.1378 inches). The insert is part of the ISCAR Isoturn series and conforms to ISO 13399 cutting tool data standards, making it compatible with digital tool management systems.

Key Features

• TNMG431TF geometry with 60-degree included angle and positive rake for reduced cutting forces
• IC8250 grade with CVD TiCN and Al2O3 multilayer coating for wear and heat resistance
• TF chip breaker optimized for medium to finishing depths of cut up to 3.50 mm
• Clamp and pin holding method for secure seating in compatible toolholders
• Conforms to ISO 13399 cutting tool data standard
• Primary workpiece material suitability: ISO groups P (steel) and M (stainless steel)

Compatibility

Designed for use in TNMG-style toolholders with clamp and pin insert holding. Suitable for ISO material group P (carbon and alloy steels) and group M (stainless steels) as stated by the manufacturer. Verify toolholder seat geometry and clamping style before installation.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before changing inserts. Use the appropriate torque wrench or insert key per toolholder manufacturer guidelines to seat the clamp without overtightening. Inspect the insert pocket and shim for wear or debris before seating a new insert.