Designed for precision internal threading in through-hole work, the Carmex MTZ carbide thread mill delivers coolant directly through the flutes for efficient cooling and clean, consistent threads.

• Through-Coolant Flutes: coolant channels run through the flutes to the cutting edge, enabling effective heat removal and chip evacuation.
• Material: solid carbide construction for rigidity and wear resistance under demanding cutting conditions.
• Thread Size and Standards: 5/16-24 thread milling with support for UN family threads (UNC, UNF, UNEF, UNS).
• Shank: MT7 shank for robust engagement in standard toolholders.
• Application Focus: optimized for threading through holes, with direct chip removal to minimize clogging.
• Machine Compatibility: suitable for machines without external coolant systems, expanding where you can mill internal threads without dedicated coolant.

The MTZ approach translates into tangible on‑the‑shop benefits: tighter, more repeatable internal threads, better surface finish, and reduced tool wear thanks to direct cooling at the cutting edge. With through-hole threading and direct chip removal, you can maintain consistent tolerances even in challenging materials, while the MT7 shank ensures stable, vibration‑free performance in a wide range of CNC setups. This makes the Carmex MTZ thread mill a practical choice for shops seeking reliable internal threading without relying on external coolant systems.