The Carmex Spiral Mill Threading Insert (Metric/ISO – H23I1.0ISOMT7) is a versatile threading and milling tool engineered for a wide range of applications. From small components on compact machining centers to demanding work on high‑power mills, it delivers efficient threading, roughing, and finishing in a single family of inserts. The spiral cutting geometry enables a smoother cut at higher feed rates, helping you reduce cycle times without sacrificing accuracy.

Built around a spiral fluted toolholder system, this insert set accommodates 1 to 9 inserts in a compact cutting diameter and uses a unique clamping method to ensure reliable indexability. The design minimizes vibration and chatter, resulting in a consistently clean finish across materials and applications. Inserts are available in MT7 Sub‑Micron Grade with a Titanium Nitride multi‑layer coating (ISO K10‑K20), a general‑purpose grade that performs well with a wide range of materials.

• Efficient spiral cutting for fast threading: Smooth cutting at high feed rates reduces machining time and boosts overall productivity without sacrificing thread accuracy.
• Flexible insert capacity with reliable indexing: Holds 1–9 inserts in a compact diameter, with a unique clamp that provides precise, repeatable indexing for quick tool changes.
• Durable MT7 TiN-coated inserts: Sub‑micron MT7 inserts with TiN multi‑layer coating offer excellent wear resistance and consistent finishes across diverse materials.

This combination delivers a reliable, high‑quality threading solution that helps you meet tight tolerances, minimize downtime, and maintain steady throughput across a broad spectrum of materials and project sizes.