The Carmex Spiral Mill Threading Insert is a purpose-built spiral-fluted tool system designed for threading and milling tasks across a wide range of machines. Whether you’re machining small components on compact centers or tackling heavy-duty work on high-power mills, this insert family is engineered to deliver smooth cuts, higher feed rates, and reduced cycle times.

• Efficient spiral cutting for high feed rates: The spiral geometry enables smooth, continuous cutting at higher feed rates, helping you complete work faster without sacrificing finish or accuracy.
• Flexible insert capacity with precise indexing: Spiral fluted toolholders hold 1 to 9 inserts in a compact cutting diameter, while a unique clamping method ensures reliable, repeatable index positioning for quick changes.
• MT7 TiN-coated inserts for broad material compatibility: Inserts use MT7 Sub-Micron Grade with Titanium Nitride multi-layer coating (ISO K10-K20), providing versatile performance across materials and consistently good finishes in threading and milling.

This combination supports cleaner workflows, reduces downtime from tool changes, and delivers dependable performance across threading, roughing, and finishing tasks. With a general-purpose MT7 TiN-coated option, you can rely on steady tool life and predictable results for a wide range of projects.