Sumitomo 19W2CFY Turning Insert CNMG432EEG AC5005S Carbide

Product Description

The SUMITOMO 19W2CFY is a solid carbide turning insert in the CNMG style, designed for use in CNC lathe and turning center applications. It carries the AC5005S manufacturer grade with a PVD-applied Absotech coating for improved wear resistance and thermal stability at the cutting edge. The insert features an 80-degree diamond (rhombic) shape with a negative rake geometry and a 0.0315-inch corner radius, making it well suited for general-purpose external and internal turning on a range of workpiece materials. The ISO designation is CNMG120408N-EG. Machinists and CNC operators install this insert as part of a clamp-and-pin toolholder system.

This insert is intended for use in production and job-shop turning operations where a reliable, coated carbide grade is required. The EEG chip breaker geometry is suited for applications where controlled chip evacuation is a priority. The negative rake and N clearance code make it compatible with rigid, high-stability toolholder setups. It is sold individually and is appropriate for both ferrous and select non-ferrous turning operations where the AC5005S grade is specified.

Key Features

• CNMG insert style with 80-degree included angle and negative rake geometry
• AC5005S grade with PVD Absotech coating for extended tool life
• EEG chip breaker for controlled chip formation during turning
• 0.0315-inch corner radius for a balance of edge strength and surface finish
• Clamp and pin holding method compatible with standard CNMG toolholders
• ISO code CNMG120408N-EG for cross-reference with metric toolholder systems

Compatibility

Designed as an OEM-style replacement or direct-use insert for standard CNMG toolholders that accept a 432 insert size with a 0.5079-inch insert length and 1/2-inch inscribed circle.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Always index or replace inserts with the machine in a fully stopped and locked-out state. Use the appropriate torque wrench for the clamp screw to ensure the insert seats fully in the pocket without rocking. Inspect the toolholder pocket and pin for wear or damage before seating a new insert.