Meet the Carmex Spiral Mill Threading Insert (Unified series, H40I4.5UNMT7). This spiral-mill threading tool is built for a wide range of users—from precision work on small machining centers to demanding, high-power milling applications—offering faster cycles through smooth, high-feed cutting action.

• High-Feed Spiral Cut for Fast, Smooth Milling: The spiral geometry enables steady cutting at higher feed rates, reducing cycle times and delivering clean, consistent finishes on threading, roughing, and finishing passes.
• Flexible 1–9 Insert Capacity with Precise Indexing: The toolholder accommodates 1 to 9 inserts in a compact diameter, and its unique clamping method ensures easy, repeatable indexing with minimal downtime.
• Durable MT7 Sub-Micron TiN-Coated Inserts: Sub-Micron MT7 inserts with a Titanium Nitride multi-layer coating (ISO K10–K20) offer extended tool life and reliable wear resistance across a wide range of materials.

This combination delivers dependable performance, reduces machine downtime, and supports consistent, high-quality finishes across threading and milling operations. Whether upgrading existing equipment or outfitting a new job, you’ll gain faster cycle times, fewer tool changes, and predictable results—backed by Carmex’s manufacturing standards and material versatility.