The Carmex Spiral Mill Threading Insert - NPTF - H32-11.5NPTFMT7 is a spiral milling tool system designed for threading and general milling tasks. It delivers a smooth cutting experience at high feed rates, helping you complete jobs faster with consistent results across a range of materials and applications.

From small components on compact machining centers to heavy-duty work on high-power mills, these spiral tools are built to handle diverse workloads. The spiral fluted toolholders accommodate 1 to 9 inserts in a relatively small cutting diameter, with a unique clamping method that ensures optimal indexability and minimizes vibration and chatter for reliable, high-quality finishes.

• High-efficiency cutting: The spiral design enables smooth cutting at high feed rates, reducing cycle times and increasing productive output without compromising finish.
• Flexible, compact tooling: Spiral fluted toolholders hold 1–9 inserts in a small cutting diameter, enabling versatile setups from delicate threading on small parts to demanding milling on larger components.
• Durable, versatile inserts: MT7 Sub-Micron Grade inserts with Titanium Nitride multi-layer coating (ISO K10–K20) provide long tool life and reliable finishes across a wide range of materials.

This system supports faster setups and consistent results across threading, end milling roughing, and finishing operations. The combination of a robust clamping method, vibration reduction, and coated, general-purpose inserts helps your team achieve dependable performance, reduce downtime, and streamline procurement with a single tooling family suitable for multiple materials and applications.