The Carmex Spiral Mill Threading Insert is a metric/ISO threading solution designed to perform across a wide range of milling setups. Whether you’re producing small components on compact machining centers or tackling demanding threading tasks on high‑power mills, this spiral tool delivers fast, smooth cutting and efficient cycle times.

Built around a spiral flute design, the inserts and toolholders enable quiet, vibration‑free operation with reliable indexing. The system supports 1 to 9 inserts in a compact cutting diameter and uses a unique clamping method to optimize indexability, helping you achieve consistent threading, roughing, and finishing results with every pass. In addition, inserts are MT7 Sub‑Micron Grade with Titanium Nitride multi‑layer coating (ISO K10–K20), offering broad material compatibility and extended tool life.

• High‑throughput spiral cutting: The spiral geometry enables smooth cutting at high feed rates, reducing machining time and improving productivity across a range of part sizes and machines.
• Flexible insert capacity with precise indexing: Holds 1 to 9 inserts in a small cutting diameter with a dedicated clamping system for optimal indexability, minimizing downtime and ensuring repeatable, accurate threads.
• Durable MT7 TiN‑coated inserts for all materials: Sub‑Micron MT7 inserts with TiN multi‑layer coating (ISO K10–K20) deliver long tool life and consistent surface finishes in threading, roughing, and finishing applications.

This combination helps you streamline workflows, reduce cycle times, and maintain excellent thread quality across diverse materials. The spiral mill threading insert is a dependable choice for engineers, shop floor technicians, and hobbyists who value consistent performance, easy setup, and reliable results from first part to last.