Sumitomo 19HW375 Turning Insert VNMG332EUP AC520U Carbide

Product Description

The SUMITOMO 19HW375 is a solid carbide turning insert designed for precision metal cutting on CNC lathes and turning centers. Manufactured to ANSI designation VNMG332EUP and ISO code VNMG160408N-UP, this insert features a 35-degree diamond shape (V) with a neutral hand orientation. The AC520U grade substrate carries a PVD-applied TiAlN and AlCrN dual-layer coating, marketed under Sumitomo's Super ZX proprietary coating designation. The EUP chip breaker geometry delivers a positive 10-degree rake angle, promoting efficient chip evacuation and reduced cutting forces. This insert is suited for machinists and toolroom professionals requiring tight tolerance performance in demanding turning applications.

The 19HW375 is engineered for turning stainless steel and superalloy workpiece materials, where thermal resistance and edge stability are critical. The positive rake geometry and dual PVD coating help manage heat buildup and work hardening common in these material groups. It fits standard VNMG-style toolholders using clamp and pin holding methods, making it a direct fit for a wide range of existing setups in production and job-shop environments. The insert complies with ANSI and ISO 13399 standards, supporting tool data integration in CAM and tool management systems.

Key Features

• AC520U solid carbide grade with PVD TiAlN and AlCrN Super ZX coating for heat and wear resistance
• EUP chip breaker with positive 10-degree rake angle for efficient chip control in difficult materials
• 35-degree diamond insert shape (VNMG) with neutral hand for versatile turning and profiling
• Clamp and pin holding method compatible with standard VNMG toolholder systems
• Meets ANSI and ISO 13399 standards for tool identification and CAM data compatibility
• Optimized for stainless steel and superalloy turning applications

Compatibility

Designed to fit standard VNMG-style turning toolholders that accept clamp and pin insert retention. Compatible workpiece material groups include stainless steel (ISO M) and superalloys (ISO S) per supplier specifications.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before seating or replacing inserts. Ensure the toolholder pocket and seating surfaces are clean and free of chips or debris before clamping. Follow the toolholder manufacturer's clamping torque and procedure specifications for VNMG-style inserts.