Carmex FSH Thread Mills are precision solid carbide tools engineered to deliver reliable, high-accuracy thread milling in very hard materials. Designed for UN thread standards (UNC, UNF, UNEF, UNS) and a Morse Taper 3 (MT3) shank, these fast-type mills are built for demanding applications where strength and stability matter.

• MT3 Shank: Morse Taper 3 shank for secure mounting in a wide range of milling machines.
• Solid Carbide Construction: Robust, wear-resistant base material designed for long life in tough workpieces.
• Ultra-Fine Grade with PVD Coating: Ultra-fine carbide grade coated with a multi-layer PVD coating to resist heat and wear when cutting hard alloys.
• High-Flute Count: Up to 7 flutes for improved chip evacuation and stable cutting in hard materials.
• Hard Material Capability: Machines exceptionally hard workpieces up to 65 HRC, including demanding superalloys.
• UN Thread Compatibility: Precise threading for UNC, UNF, UNEF, and UNS standards directly with the mill.
• Fast Type Thread Milling: Optimized geometry for efficient, accurate internal threading without tapping.
• Nominal Size: Mo. 5, No. 6 x 40 with MT3 shank, ready for standard hard-material threading tasks.

These features translate into tangible benefits: you get clean, repeatable thread forms on hardened steels and exotic alloys, reduced tool wear thanks to the PVD coating, and the ability to produce internal threads quickly without secondary tapping steps. The combination of a high flute count and a stable cutting edge delivers better surface finish and more predictable performance in production runs, making these thread mills a dependable choice for aerospace, automotive, tool-and-die, and precision manufacturing environments where hard-material threading is routine.