Vargus 21989 Turning Insert Carbide Style a Series A04

Product Description

The VARGUS 21989 is a carbide turning insert designed for metal cutting and machining operations on CNC and manual lathes. Belonging to the A04 series, this insert features Style A geometry and a GN chip breaker profile, making it suited for controlled chip evacuation during turning passes. The insert targets P-group workpiece materials, which covers carbon steels, alloy steels, and ferritic stainless steels. At 0.02 pounds per unit, it is a compact, single-use precision cutting tool installed by machinists and toolroom technicians working in production or job-shop environments.

This turning insert is applied in external and internal turning operations where consistent chip control and edge integrity are required. The GN chip breaker geometry is optimized for the P workpiece material group, supporting reliable performance across a range of carbon and alloy steel applications. It fits A04 series toolholders designed to accept Style A inserts, making it a direct-fit replacement or standard restocking item for shops already running this toolholder platform.

Key Features

• Carbide substrate for wear resistance and thermal stability during steel turning
• Style A insert geometry compatible with A04 series toolholders
• GN chip breaker profile for controlled chip formation and evacuation
• Rated for P-group workpiece materials including carbon and alloy steels
• Lightweight at 0.02 pounds per insert for easy indexing and handling

Compatibility

Designed for use with A04 series toolholders accepting Style A turning inserts. Intended for P-group workpiece materials per standard ISO material classification.

Installation Notes

Turning inserts are indexed or replaced by machinists following machine lockout and spindle-stop procedures before accessing the toolholder. Use the appropriate torx or hex key specified by the toolholder manufacturer to secure the insert clamp to the recommended seating torque listed in the toolholder documentation. Inspect the insert pocket and shim for damage or contamination before seating a new insert. Do not mix insert styles or geometries within a toolholder designed for a specific seat configuration.