The Carmex Spiral Mill Threading Insert for Metric/ISO tooling, model H15I1.0ISOMT7, is a spiral-fluted threading insert designed for a wide range of machining tasks. It shines in both small-component work on compact centers and heavy-duty milling on high-power machines, delivering fast, smooth cutting and reduced cycle times.

This insertset uses spiral toolholders that hold 1 to 9 inserts in a compact cutting diameter, with a unique clamping method that enables optimal indexability. The design helps minimize vibration and chatter while delivering a reliable, high-quality finish across threading, end milling, roughing, and finishing passes. Inserts are available in MT7 Sub-Micron Grade with Titanium Nitride multi-layer coating (ISO K10–K20), a versatile general-purpose grade that works with a wide range of materials.

• Smooth cutting at high feed rates: Spiral geometry enables efficient, high-speed cutting with reduced machining time and improved overall productivity.
• Flexible, indexable insert holder (1–9 inserts): Compact cutting diameter with a clamping method that supports quick indexing, boosting adaptability across different job sizes.
• Durable MT7 TiN-coated inserts: Sub-micron MT7 inserts with TiN multi-layer coating deliver wear resistance and consistent finishes on a broad range of materials.

Together, these features help you streamline workflows, shorten setup and cycle times, and achieve reliable, repeatable threading and milling results—even on demanding materials—so you can finish jobs faster with confidence.