The Carmex Spiral Mill Threading Insert is a metric/ISO threading tool designed for fast, efficient spiral milling of threads. It’s built for a wide audience—from engineers and buyers to tradespeople and hobbyists—delivering reliable threading performance with a compact, versatile design. The spiral geometry enables smooth cutting at high feed rates, helping you reduce cycle times without sacrificing quality.

• Efficient spiral cutting for fast, smooth threading: The spiral flute design enables high-feed threading with a clean finish, reducing machining time and minimizing vibration for consistent, repeatable results.
• Versatile insert array with precise indexing: Toolholders can hold 1 to 9 inserts in a small cutting diameter, and the unique clamping system ensures reliable indexability for quick, accurate insert changes and less downtime.
• MT7 TiN-coated durability for all materials: In MT7 Sub-Micron Grade with a Titanium Nitride multi-layer coating (ISO K10–K20), these inserts deliver extended wear resistance and a high-quality finish across a wide range of materials, from hard metals to softer alloys.

Designed to deliver dependable performance across threading, roughing, and finishing tasks, this insert helps you achieve consistent thread quality, smoother operation, and longer tool life. Whether you’re optimizing production on a high-power milling machine or performing precise work on smaller centers, the Carmex Spiral Mill Threading Insert provides predictable results and reduced downtime to keep your workflow moving.