The Carmex Carbide Threading Insert for NPSM, TiAlN coated, model 30E8NPSM is a durable threading solution built for precision work on lathes. Designed for professional shops, it delivers reliable performance across a range of common thread profiles.

Five length options (12 mm to 40 mm) pair with a broad pitch range—0.5 mm / 32 TPI to 6.0 mm / 4 TPI depending on length—to cover most standard threading tasks without swapping inserts.

• Double-edged design: The inserts are generally double sided, offering two cutting edges to extend tool life. Exceptions apply for BSPT, NPT, NPTF, American Buttress, and API RD profiles.
• Wide threading coverage: Crafted to cover all common thread profiles, enabling efficient setup for a variety of jobs. Note that internal vs external capability can vary by profile; ISO / UN / NPSM / UNJ / Acme are among the profiles with specific directional considerations.
• Five length options: Choose from 12 mm, 16 mm, 20 mm, 30 mm, or 40 mm lengths to fit your machine tooling and the depth of threads you need.
• TiAlN-coated carbide: The TiAlN coating enhances wear resistance and heat tolerance, helping to extend insert life in demanding materials and cutting conditions.

This insert is designed to simplify threading workflows by supporting many profiles with a single tool, reducing setup time and tool changes. While it excels for a broad range of internal and external threading tasks, be mindful of profiles where dual-direction capability with the same insert is not available. Ideal for fabricating mechanical components, automotive parts, and industrial fasteners, this Carmex insert delivers consistent performance and dependable results for everyday threading challenges.