Carmex Thread Mills Solid Carbide - External - UN (UNC UNF UNEF UNS) - 12mm x 18 - MT7

The Carmex Thread Mills Solid Carbide external is engineered for precise external threading in UNC/UNF/UNEF/UNS forms. With a 12 mm cutting diameter, 18 mm length of cut, and an MT7 shank, it delivers dependable threads and efficient performance in demanding production environments.

• Cutting diameter and length: 12 mm Ø, 18 mm length of cut for compact, controlled thread milling.
• Shank: MT7 shank ensures a robust, secure fit in standard CNC spindles and holders.
• Material: Solid carbide construction for rigidity, wear resistance, and long tool life.
• Flute design: Spiral flutes paired with a 3–5 flute count to optimize surface finish and chip evacuation.
• Thread compatibility: External thread milling for UNC, UNF, UNEF, and UNS specifications.
• Surface finish: Geometry designed to deliver a superior surface finish on threaded features, reducing post-machining work.

What this means in practice: you can produce accurate external threads with fewer passes, lowering cycle times and tooling costs. The spiral flute geometry improves surface finish, minimizing rework and improving fit with mating parts. The solid carbide body maintains dimensional stability across hard-to-machine materials, while the MT7 shank provides secure retention at high torque. This makes the tool well-suited for automotive fasteners, hydraulic and pneumatic fittings, and any component requiring reliable UNC/UNF-style threads, helping you hit tight tolerances and ship parts faster.