The Carmex Spiral Mill Threading Insert (Metric/ISO - H23I4.0ISOMT7) is a versatile, indexable cutting solution for threading and milling across a broad range of machines. Its spiral-fluted design enables smooth cutting at high feed rates, reducing machining time and delivering reliable results from small-component work on compact centers to heavy-duty milling on powerful machines. The inserts use MT7 sub-micron grade with a TiN multi-layer coating (ISO K10-K20), a general-purpose option suitable for a wide range of materials.

• Spiral geometry for fast, smooth cutting: The spiral flute design reduces vibration and chatter while supporting high feed rates, helping you finish jobs faster with consistent, high-quality results.
• Flexible insert carrier with reliable indexing: Toolholders accommodate 1 to 9 inserts in a compact cutting diameter, and a unique clamping method ensures precise, repeatable indexing for quick set-ups and easy retooling.
• Durable MT7 sub-micron TiN-coated inserts: ISO K10–K20 grade provides wear resistance across materials, extending tool life and delivering clean threads and smooth finishes.

This combination supports a smooth workflow, reducing downtime and rework while delivering reliable performance across threading, roughing, and finishing passes. The MT7 TiN-coated inserts resist wear in diverse materials, and the indexed, multi-insert carrier minimizes tool changes, helping you maintain consistent results and higher productivity in busy production environments.