Carmex MTB Thread Mills deliver precision internal threading in through-holes with a robust solid carbide design and through-coolant capability. Built for machinists and manufacturers who demand consistent thread quality on 9/16-12 UNC threads, this tool combines reliability with extended life in demanding environments.

• Through-Coolant Bore: Flush coolant runs through the bore to the cutting edges, enhancing chip evacuation and cooling for cleaner holes and reduced tool wear.
• Solid Carbide Construction: High rigidity and wear resistance provide stable performance across materials and tough job conditions.
• Thread Size & Type: Handles UNC/UNF/UNEF/UNS threads on 9/16-12, enabling precise internal thread generation in a variety of holes.
• MT7 Shank: MT7 compatibility delivers strong grip and alignment in compatible toolholders for maximum stiffness and accuracy.
• Internal Thread Milling Capability: Specifically designed for milling internal threads, reducing the need for tapping and enabling flexible hole-threading workflows.

This MTB threading solution stands out where continuous through-coolant delivery and durable carbide construction matter most—think high-volume production, tight-tolerance assemblies, and parts that demand reliable internal threads from aluminum to hardened steels. Use it for inserting threaded inserts, hydraulic and pneumatic housings, or any component requiring precise, robust internal threads. The combination of through-coolant cooling and a resilient MT7 shank helps you maintain higher productivity with fewer tool changes and longer tool life, even when machining demanding materials or complex geometries.