Carmex Thread Mills in Solid Carbide offer a robust Fast Type solution for machining internal threads in very hard workpieces. Designed for professionals who work with hardened materials and superalloys, this MT3 tool delivers steady performance and precise results across UN thread standards.

• Shank: MT3 Morse Taper 3 for secure retention in compatible CNC spindles.
• Size & Thread Type: 1/4" diameter with 28 threads per inch, compatible with UNC, UNF, UNEF, and UNS internal threads.
• Flute Count: Up to 7 flutes to improve stability and chip evacuation when cutting hard materials.
• Material: Solid carbide for high rigidity, heat tolerance, and long tool life in demanding applications.
• Coating: Ultra-fine MT3 grade with a multi-layer PVD coating engineered for hard materials and superalloys up to 65 HRC.
• Type & Design: Fast Type (FSH) with a design tuned for efficient, reliable threading in tough workpieces, an improvement over previous MTSH lines.

This thread mill is purpose-built for precision internal threads in hard steels and nickel-based alloys, delivering consistent thread profile and depth with minimal runout. The combination of a multi-flute geometry and PVD coating helps maintain edge integrity under high cutting temperatures, while the MT3 shank ensures compatibility with a wide range of machines. Whether you’re threading hardened components, tooling jigs, or custom fasteners, this Carmex tool provides a dependable, repeatable solution for challenging materials.