Iscar 5510335 CNMG331F3P IC8250 Turning Insert

Product Description

The ISCAR 5510335 is a CNMG331F3P grade IC8250 solid carbide turning insert designed for external and internal turning operations on CNC lathes and turning centers. It features a multilayer PVD coating of TiCN, Al2O3, and TiN applied over a solid carbide substrate. The diamond-shaped insert carries an 80-degree included angle with a positive rake geometry and an F3P chip breaker. The inscribed circle measures 0.375 inches, insert thickness is 0.1875 inches, and the corner radius is 0.0156 inches. Licensed machinists and CNC operators install this insert in standard CNMG-style toolholders for precision turning work.

This insert is rated for turning steel and stainless steel workpiece materials, corresponding to ISO material groups P and M. It fits the Isoturn series and is suited for light to medium turning passes with a maximum depth of cut of 0.138 inches (3.50 mm). The F3P chip breaker geometry promotes controlled chip formation in finishing and semi-finishing applications on ferrous metals. It is a common choice for production turning on horizontal and vertical turning centers in job shops and manufacturing facilities.

Key Features

• Grade IC8250 solid carbide with PVD-applied TiCN, Al2O3, and TiN multilayer coating for wear resistance on steel and stainless
• 80-degree diamond insert shape (CNMG style) with positive rake for reduced cutting forces
• F3P chip breaker optimized for finishing and semi-finishing cuts on P and M ISO material groups
• Corner radius of 0.0156 inches provides tight-tolerance surface finish capability
• Maximum depth of cut of 0.138 inches (3.50 mm) suitable for light to medium material removal
• Clamp and pin insert holding method compatible with standard CNMG toolholder systems

Compatibility

Designed as an OEM-style replacement or direct-use insert for CNMG331 toolholders in the ISCAR Isoturn series. Compatible with toolholders accepting CNMG-style inserts with clamp and pin holding. Verify toolholder seat geometry and insert pocket dimensions before installation.

Installation Notes

CNC machinists and turning specialists install CNMG-style inserts. Power down and lock out the machine spindle before changing inserts. Use the appropriate torque driver or clamp screw tool specified by the toolholder manufacturer — do not overtighten the clamp screw. Inspect the insert seat and chip pocket for debris before seating the new insert to ensure proper contact and cutting edge alignment.