Introducing Carmex MTB Thread Mills — a solid carbide threading solution designed for through-coolant NPTF thread milling. Built on the trusted MT platform and enhanced by the MTB line, these tools deliver reliable thread forms, efficient chip evacuation, and extended tool life.

• Through-bore coolant delivery: Fluid is fed through the bore to the cutting edges, promoting chip evacuation and reducing heat buildup for cleaner threads and longer tool life.
• Solid carbide construction: Rigid, wear-resistant carbide provides stable performance in demanding materials and tight tolerances.
• Thread type: Optimized for NPTF threads, delivering precise profiles and dependable sealing surfaces in threaded components.
• MT7 shank: Compatible with standard MT7 tool holders for secure, versatile mounting on a wide range of milling centers.
• Size/reach: 2 1/2 + x 8, offering a robust reach for deep-hole thread milling without compromising accuracy.
• MTB line advantage: Part of Carmex’s MTB line, designed to maximize cooling-through-bore performance to improve chip control and extend tool life.

This thread mill helps you achieve consistent, high-quality NPTF threads in challenging through-hole applications. By combining through-coolant cooling and a durable carbide body, it reduces thermal wear, minimizes chip build-up, and supports longer production runs with fewer insert changes. Ideal for hydraulic fittings, piping components, and precision assemblies where reliable sealing and repeatable thread form matter most.