The Carmex Spiral Mill Threading Insert is a metric/ISO threading tool designed to handle precision threading, end milling roughing, and finishing with one versatile solution. It’s built for a broad audience—from engineers and machinists to hobbyists—delivering consistent results across small components on compact machines and demanding jobs on high‑power milling centers. The spiral design enables smooth cutting at higher feed rates, helping you cut cycle times without sacrificing thread quality.

• Fast, smooth cutting at high feed rates: The spiral geometry reduces cutting resistance and vibration, enabling efficient material removal and shorter machining times while preserving clean, accurate threads and finishes.
• Flexible insert mounting and precise indexability: Spiral fluted toolholders hold 1 to 9 inserts in a compact cutting diameter, with a unique clamping method that ensures optimal index positioning for repeatable, reliable tool life.
• Durable MT7 TiN-coated inserts for broad material compatibility: Inserts feature MT7 sub-micron grade with Titanium Nitride multi‑layer coating (ISO K10‑K20), delivering wear resistance across a wide range of materials and delivering a high-grade finish in threading, roughing, and finishing.

This spiral tooling delivers dependable performance across applications, reducing downtime and helping you achieve consistent, high-quality results. With a robust coating and versatile insert lineup, it supports long runs between tool changes, easy setup, and reliable performance whether you’re threading or finishing complex geometries on tough materials.