The Carmex Spiral Mill Threading Insert - Metric/ISO - H45I5.0ISOMT7 is a spiral flute threading insert engineered for versatile metalworking tasks. It’s suitable for a wide audience—from engineers and machinists to buyers, tradespeople, hobbyists, and non-technical customers—needing reliable threading, end milling roughing, and finishing with a single tooling solution. The spiral geometry delivers smooth cutting action, supporting efficient material removal and consistent results.

Designed for broad material compatibility, this system uses MT7 inserts with Sub-Micron Grade and Titanium Nitride multi-layer coating (ISO K10-K20). This general‑purpose coating and grade combination enables dependable performance across threading, roughing, and finishing, helping you achieve a high-quality finish while keeping tooling life and productivity in mind.

• Smooth cutting at high feed rates: Spiral geometry enables a smooth cutting action at fast feeds, reducing cycle times and improving productivity in threading, end milling, and finishing tasks.
• Compact, indexable insert layout: Spiral toolholders hold 1 to 9 inserts in a small cutting diameter, with a unique clamping method that ensures optimal indexability for consistent, repeatable results and easier setup.
• MT7 Sub-Micron TiN-coated inserts: The inserts offer broad material compatibility with a TiN multi-layer coating (ISO K10-K20), delivering durable wear resistance and reliable performance across a wide range of materials.

This insert system helps you complete threading, roughing, and finishing with fewer tool changes and more predictable outcomes. The combination of smooth cutting, reliable indexability, and durable MT7 TiN-coated inserts translates to cleaner threads, better surface finishes, and improved overall workflow in both light-duty and heavy-duty milling environments.