The Carmex MT3 Solid Carbide Thread Mill, Fast Type for Hard Materials, is built for precision internal threading in tough workpieces. Designed for machinists and engineers who routinely work with hard alloys, it delivers clean, accurate threads with high stability.

• Thread Size: Metric M4 x 0.7 thread milling cutter for standardized, repeatable threads.
• Shank: MT3 shank for secure mounting in compatible milling machines.
• Material & Coating: Solid carbide with an ultra-fine MT3 grade and a multi-layer PVD coating for exceptional wear resistance and heat tolerance.
• Flute Count: Up to 7 flutes on select models to improve rigidity and chip evacuation in hard materials.
• Material Capability: Suitable for materials up to 65 HRC, including superalloys and hardened steels.
• Performance: Optimized geometry for high edge stability, smoother thread finish, and reliable repeatability at higher speeds.
• Application: Fast Type design geared toward efficient high-speed threading in hard-to-machine workpieces.

By pairing a durable carbide body with a precise coating and a flute-rich geometry, this thread mill enables rapid, accurate internal threads in the toughest materials. You’ll enjoy tighter tolerances, longer tool life, and reduced cycle times thanks to stable cutting and effective chip control. Ideal for aerospace, automotive, die/mold, and general precision manufacturing where hard materials are a routine challenge.