Sumitomo 19W1APS Turning Insert VNMG332ESU AC8020P Carbide

Product Description

The SUMITOMO 19W1APS is a solid carbide turning insert designed for precision metal cutting on CNC lathes and turning centers. It carries the ANSI code VNMG332 and ISO code VNMG160408, featuring a V-diamond (rhombic) 35-degree included angle and a negative rake, negative side clearance geometry. The Absotech CVD coating and AC8020P grade deliver high to moderate wear resistance paired with adequate toughness, making this insert well-suited for finishing and light machining passes on steel workpieces. The 0.0315-inch corner radius supports fine surface finishes at controlled depths of cut. Licensed machinists and CNC operators install this insert in clamp- or pin-style toolholders.

This insert is intended for finishing and light machining operations on steel (ISO material group P, material grade P20). It is engineered for applications where high wear resistance is the primary requirement and surface finish quality is critical. The ESU chip breaker geometry is optimized for low-force, close-tolerance turning passes rather than heavy roughing. Typical install environments include production turning on carbon steels, alloy steels, and similar ferrous workpiece materials in both job-shop and production-floor settings.

Key Features

• ANSI code VNMG332 / ISO code VNMG160408 for broad toolholder compatibility
• AC8020P Absotech CVD coating provides high wear resistance on steel (P-grade materials)
• 35-degree V-diamond insert shape with negative rake and negative clearance geometry
• ESU chip breaker optimized for finishing and light machining operations
• 0.0315-inch corner radius for controlled surface finish on tight-tolerance parts
• Compatible with both clamp and pin insert holding methods

Compatibility

Designed for use in VNMG-style toolholders that accept a 3/8-inch inscribed circle, ANSI size code 332 insert with clamp or pin holding. Verify toolholder pocket geometry and tolerance code M requirements before installation.

Installation Notes

Installation should be performed by a qualified machinist or CNC technician. Power down and lock out the machine spindle before seating or replacing the insert. Ensure the toolholder pocket and clamping components are clean and free of chips before securing the insert. Consult the toolholder manufacturer specifications for proper clamping torque and insert seating procedure.