Sumitomo 19HWCFY Turning Insert CNMG432EEG AC520U Carbide

Product Description

The SUMITOMO 19HWCFY is a solid carbide turning insert in the CNMG432EEG geometry, finished with a dual PVD coating of TiAlN and AlCrN under SUMITOMO's proprietary Super ZX designation. The insert features an 80-degree diamond shape (ANSI code CNMG432EEG, ISO code CNMG120408N-EG), a neutral rake and hand orientation, a 0.5079-inch length, a 0.5000-inch inscribed circle, and a 0.0313-inch corner radius. Designed for use on CNC turning centers and lathes, this insert suits licensed machinists and tooling specialists running high-demand metal removal operations where edge toughness and thermal resistance are critical.

The EEG chip breaker geometry and AC520U grade make this insert well-suited for turning stainless steel, superalloys, and titanium - workpiece material codes M and S. It is intended for applications where controlled chip formation, reduced built-up edge, and coating durability under elevated cutting temperatures are required. The insert mounts via clamp and pin holding methods and carries a clearance code of N with a tolerance code of M, consistent with precision-fit toolholders in that system.

Key Features

• Dual PVD coating: TiAlN and AlCrN (Super ZX) for high heat resistance and extended tool life
• AC520U grade engineered for stainless steel, superalloy, and titanium machining
• EEG chip breaker promotes controlled chip evacuation in difficult-to-machine materials
• 80-degree diamond insert shape (Code C) provides a strong cutting edge geometry
• Neutral rake and hand orientation for flexible toolholder compatibility
• Compliant with ANSI and ISO 13399 standards for insert identification and tooling data exchange

Compatibility

Designed as an OEM-style replacement turning insert for CNMG-style toolholders accepting a 0.5000-inch inscribed circle, clamp and pin mounting, clearance code N, and tolerance code M. Compatible with systems requiring ANSI code CNMG432EEG or ISO code CNMG120408N-EG inserts.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and locked out before seating or replacing inserts. Verify toolholder pocket cleanliness and clamp torque per the toolholder manufacturer's specification before engaging the cut. Do not exceed the insert's rated depth of cut or feed parameters for the target workpiece material.