Carmex Thread Turning External Insert for UN thread standards (Right Hand) — model 22ER13UN3MBMA — is a right-hand external threading insert designed to work with UNC, UNF, UNEF, and UNS threads. It belongs to Carmex's industry-leading range of thread turning inserts and is built to deliver dependable performance across a broad spectrum of tasks.

These high-quality laydown triangular inserts offer a versatile solution for most thread standards in use today and can handle a wide range of applications—from basic threading tasks to the most demanding ones.

• Wide thread‑standard compatibility: Covers UNC, UNF, UNEF, and UNS with a single insert, helping reduce tool changes and inventory complexity.
• Triangular laydown geometry for stable cuts: Designed to provide clean, consistent threads with strong cutting action and reduced vibration across varied materials.
• Right-hand external threading: Optimized for right‑hand threads, delivering reliable engagement and smooth thread formation in everyday shop use.

You’ll gain a dependable, versatile tool that simplifies setup, reduces downtime from tool changes, and helps you achieve consistent thread quality every time. With universal coverage of UNC, UNF, UNEF, and UNS, this insert minimizes the need for multiple tools and supports efficient workflows from first part to last.