The Carmex Thread Turning External Insert - UN (UNC, UNF, UNEF, UNS) - Right Hand - 22ER16UN3MBMA sits at the heart of our industry-leading range of thread turning inserts. These high-quality laydown triangular inserts are designed to cover the majority of thread standards used today, making them a versatile choice for external threading operations.

Built for right-hand turning, this insert delivers reliable performance across a wide range of applications—from basic threading tasks to the most demanding jobs. The precise geometry supports consistent thread form and smooth cutting, helping you achieve accurate results with fewer passes.

• Broad thread standard compatibility: Supports UNC, UNF, UNEF, and UNS external threads, reducing the need to stock multiple tools and streamlining your setup.
• Right-hand orientation optimized for external turning: Specifically designed for right-handed cuts to deliver stable engagement, clean starts, and consistent thread quality.
• Versatile performance for basic to demanding applications: From simple projects to precision threads, this insert maintains reliability and finish quality across a wide range of tasks.

This insert helps you simplify threading workflows: a single tool can cover multiple standards, while delivering consistent thread quality and predictable results. Its laydown triangular design provides stable cutting action and efficient chip control, supporting faster cycles, reduced rework, and dependable performance from prototype through production.