The Carmex Thread Mills Solid Carbide – Fast Type (FSH) are precision tools designed for hard-material threading. Built for professionals who machine UNC/UNF/UNEF/UNS threads, they deliver fast, stable threading with long tool life.

• No. 8 x 32 size: thread mill with MT3 shank, optimized for CNC mills and precise internal threading on hard materials.
• Flute count: up to 7 flutes to improve rigidity and chip evacuation when cutting tough alloys.
• Material and coating: solid carbide with a PVD multi-layer coating for enhanced wear resistance and heat management (up to 65 HRC).
• Threading capability: designed to form UN family threads (UNC/UNF/UNEF/UNS) with clean, accurate profiles.
• Performance edge: ultra-stable cutting edge and high heat resistance deliver consistent results in demanding applications.

These features translate to reliable thread formation in hardened steels and high-temperature alloys, with smoother finishes, tighter tolerances, and longer tool life. Ideal for aerospace fasteners, mold and die work, automotive components, and precision assemblies where durable, repeatable internal threads are essential. The MT3 shank and multi-flute design help you maintain productive feeds and speeds, reduce cycle times, and minimize downtime due to tool wear.