The Carmex MT line solid carbide internal thread mill delivers precise, efficient internal threading for UNC/UNF/UNEF/UNS threads. Designed for a 5/16" major diameter with 24 TPI and MT7 tooling, it’s built for shops that demand reliable, cost-effective thread milling.

• Tool Type: Solid carbide internal thread mill engineered for clean, consistent internal threading in holes.
• Threading Standards: Supports internal threads in UNC, UNF, UNEF, and UNS configurations.
• Size and Pitch: 5/16" diameter with 24 threads per inch (5/16 x 24).
• Flute Count: Multi-flute design (3–5 flutes) to enhance cutting efficiency and chip evacuation.
• Shank/Tool Holder: MT7 Morse taper shank for rigid, precise mounting on compatible machines.
• Material and Construction: Solid carbide construction for rigidity, wear resistance, and long tool life.
• Application Focus: Ideal for internal threading in through-holes and blind-hole scenarios across common metalworking materials.

This internal thread mill is built to deliver repeatable, high-quality threads with fewer passes compared with traditional tapping, helping minimize cycle times and tooling costs. The combination of a robust carbide body, smart flute geometry, and a stable MT7 shank translates to smoother finishes, better hole tolerance, and extended tool life in production environments. Whether you're manufacturing fasteners, housings, or specialty components, this tool provides dependable performance for standard UNC/UNF/UNEF/UNS threads at 5/16" x 24.