Iscar 5550524 WNMG331GN IC8250 Turning Insert Trigon

Product Description

The ISCAR 5550524 is a WNMG331GN-style indexable turning insert in grade IC8250, designed for external and internal turning operations on CNC and manual lathes. The insert is manufactured from solid carbide and carries a multilayer PVD coating of TiCN, Al2O3, and TiN, which provides wear resistance and thermal stability under continuous and interrupted cutting. The 80-degree trigon shape (W) with a neutral clearance angle (N) and a 1/64-inch corner radius makes it well suited for medium to finish turning passes. This insert is part of the ISCAR Isoturn series and is installed by machinists and toolroom technicians.

This insert is intended for turning stainless steel and carbon or alloy steel workpieces, covering ISO material codes M and P. The Isoturn series is commonly applied in production turning environments where consistent chip control and extended tool life are required. The GN chip breaker geometry supports moderate feed rates and depths of cut, with a maximum depth of cut of 0.1378 inches (3.50 mm). It fits standard WNMG toolholders that accept clamp and pin holding methods, making it a direct drop-in for compatible Isoturn and aftermarket toolholder bodies.

Key Features

• IC8250 grade solid carbide substrate with multilayer PVD TiCN, Al2O3, and TiN coating for extended wear resistance
• 80-degree trigon insert shape with neutral (N) clearance and M tolerance for consistent seating
• 1/64-inch corner radius suitable for medium to finish turning applications
• GN chip breaker geometry optimized for stainless steel and steel workpieces
• Maximum depth of cut of 0.1378 inches (3.50 mm) for controlled material removal
• Conforms to ISO 13399 tooling data standards for CAM and tool management compatibility

Compatibility

Designed as an OEM-style replacement insert for WNMG-style toolholders that accept clamp and pin holding methods, as found in the ISCAR Isoturn series and compatible toolholder systems.

Installation Notes

This insert is installed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before changing inserts. Seat the insert fully against the pocket locating surfaces and verify the clamp or pin is secure before resuming cutting. Do not exceed the rated depth of cut, and follow the toolholder manufacturer's torque guidance for clamping screws.