The Carmex Spiral Mill Threading Insert - NPTF - H15-14NPTFMT7 is a spiral milling insert engineered for NPTF threading and general milling work. It’s ideal for a wide range of users—from precision shops working on small components to production environments with high-power milling machines—delivering fast, clean threads and consistent results.

Its spiral geometry enables a smooth cutting operation at a high feed rate and reduced machining time, helping you complete jobs faster without compromising quality.

• High-feed, smooth cutting: The spiral design delivers smooth cutting at high feed rates, ensuring efficient threading and milling with fewer passes and shorter cycle times.
• Broad application range: Designed to perform across small-component work on compact centers and heavy-duty tasks on high-power mills, providing reliable results in diverse applications.
• Optimized indexing with coated MT7 inserts: Unique clamping enables optimal indexability while MT7 Sub‑Micron inserts with Titanium Nitride multi‑layer coating (ISO K10‑K20) enhance wear resistance and deliver a consistent finish across materials.

With this spiral mill threading insert, you gain dependable threading and finishing performance that supports faster workflows, reduced tool wear, and consistent results on NPTF threads and related milling tasks. The combination of vibration suppression, versatile material compatibility, and precise indexing helps you meet tight tolerances more efficiently, improving overall productivity.