Carmex MTB solid carbide thread mills with through coolant are engineered for precise internal threading in metric sizes, designed for MT7 toolholders. This advanced MTB line delivers clean, repeatable threads with enhanced durability to meet the demands of precision machining.

• Through coolant bore: coolant is delivered directly through the tool bore to the cutting edges, improving chip evacuation and reducing heat during internal threading.
• Solid carbide construction: high-hardness carbide provides excellent wear resistance and maintains accurate thread profiles in demanding materials.
• MT7 shank compatibility: optimized for MT7 toolholders to ensure rigid, stable performance on high-speed CNC mills.
• Metric thread options: available in M24 and M28 x 3 sizes to cover common internal threading needs.
• MTB line innovation: part of Carmex’s MTB family, extending the MT platform with bore-through cooling for improved tool longevity and productivity.

The through-coolant design helps continuously flush chips from the thread form, reducing the risk of built-up edges and keeping thread geometry intact. With direct cooling and robust carbide, you’ll experience longer tool life, fewer tool changes, and more consistent thread quality. This makes the Carmex MTB thread mills ideal for aerospace, automotive, and general precision engineering applications where reliable internal threads and efficient throughput matter. MT7 compatibility also supports stable performance in demanding milling scenarios, including deeper holes and challenging alloys.