Carmex Spiral Mill Threading Insert for NPS – H13-18NPSMT7 is a spiral-fluted insert system designed for threading, end milling roughing, and finishing. It excels across a wide range of work, from small components on compact machining centers to heavy-duty tasks on high-power milling machines. The spiral geometry promotes a smooth cut at higher feed rates, helping you reduce machining time without sacrificing precision.

Inserts use MT7 Sub-Micron Grade with Titanium Nitride multi-layer coating (ISO K10-K20), providing a general-purpose option that can be used with all materials. Spiral toolholders accommodate 1 to 9 inserts in a compact cutting diameter, and the unique clamping method enables optimal indexability for repeatable, dependable results. The design helps minimize vibration and chatter while delivering a consistently high-grade finish across threading, roughing, and finishing operations.

• Smooth cutting at high feed rates: The spiral design delivers a smooth cutting operation at elevated feed rates, reducing cycle times and helping you complete jobs faster without sacrificing surface quality.
• Flexible insert capacity with precise indexing: Spiral fluted toolholders hold 1 to 9 inserts in a compact diameter, and the unique clamp enables optimal, repeatable index positioning for consistent results.
• MT7 TiN-coated inserts for universal material compatibility: Sub-Micron MT7 inserts with Titanium Nitride coating (ISO K10-K20) provide durable cutting and reliable finishes across a wide range of materials.

This spiral mill threading insert system is built to support efficient workflows, minimize downtime, and deliver dependable performance from first cut to final finish. Whether you’re threading small features or performing finishing passes on larger components, you can trust this tooling to maintain consistent results and help you meet tighter production schedules.