Meet Carmex Thread Mills Solid Carbide — an internal threading solution designed for CNC operators, machinists, and production shops that demand reliable, precise threads in UNC/UNF/UNEF/UNS forms. Built for efficiency and cost-effectiveness, it delivers consistent results across demanding threading jobs.

• Threading capability: Internal thread milling for UNC/UNF/UNEF/UNS threads in metal workpieces.
• Size and pitch: 3/4" major diameter with 20 TPI (3/4-20) to match common American thread forms.
• Flute configuration: Multi-flute design (3–5 flutes) enhances cutting precision and promotes efficient chip evacuation.
• Shank and compatibility: MT7 solid carbide shank for secure, rigid fit in MT tool holders.
• Material and durability: Solid carbide construction delivers rigidity and wear resistance for longer tool life.
• MT line philosophy: Optimized geometry to maximize threading efficiency and reduce cycle times in production runs.

This thread mill enables precise 3/4-20 internal threads in through-holes and general-purpose holes, supporting consistent finishes and precise fits. The robust carbide construction and multi-flute design help maintain accuracy under repeated use, while the MT7 shank ensures stable, reliable performance in standard CNC milling setups. Ideal for shops aiming to streamline threading tasks without sacrificing quality or tool longevity.