The Carmex Spiral Mill Threading Insert (Unified) H17I9UNMT7 is a spiral flute threading insert system engineered for efficient metal cutting. It is suited for a wide range of work, from small components on compact machining centers to heavy-duty milling on high-power machines, delivering smooth cutting at high feed rates and reducing overall machining time.

Thanks to a unique clamping method, this system provides optimal indexability and minimizes vibration and chatter, helping you achieve precise threads and consistently clean finishes across threading, end milling roughing, and finishing tasks.

• Efficient high-feed spiral cutting: The spiral geometry enables smooth cutting at high feed rates, reducing cycle times and increasing throughput on both small and large milling setups.
• Flexible insert capacity with precise indexability: Spiral toolholders hold 1 to 9 inserts in a compact cutting diameter, with a unique clamping method that ensures quick, repeatable indexing for reliable performance.
• Vibration control and versatile finishing with coated MT7 inserts: The spiral design reduces vibration and chatter to improve surface finish across threading, roughing, and finishing. Inserts are MT7 Sub-Micron Grade with Titanium Nitride multi-layer coating (ISO K10-K20), a general-purpose grade suitable for use with all materials.

This combination of fast, dependable performance and broad material compatibility helps streamline your workflow, minimize downtime, and deliver consistent results across a wide range of threading and milling applications.