Introducing the Carmex MTB Thread Mills: a solid carbide internal thread milling tool with through-bore coolant, engineered for UNC, UNF, UNEF, and UNS threads. Designed for machining precision holes, this 3/4" diameter tool with MT7 shank delivers reliable performance in demanding applications.

• Through coolant delivery: coolant flows through the bore directly to the cutting edges, enhancing chip evacuation and maintaining cooler, more stable cutting conditions.
• Solid carbide construction: exceptional rigidity and wear resistance for long tool life and consistent thread quality in challenging materials.
• UN thread compatibility: optimized for internal threads in UNC, UNF, UNEF, and UNS standards, delivering accurate, repeatable results.
• Size and shank: 3/4" cutting diameter with MT7 shank, suitable for machines equipped with MT7 spindle tooling.
• MTB line innovation: advanced bore-cooled design that combines efficient coolant delivery with robust flute geometry for reliable performance.

This MTB through-coolant design addresses two critical needs in thread milling: superior chip control and extended tool life. By delivering coolant through the bore, it minimizes chip damming in deep or tight holes and reduces heat buildup at the cutting edges. The result is cleaner threads, smoother finishes, and less downtime due to tool wear or rework. Ideal for precision manufacturing environments where consistent thread quality and uptime are essential.