Carmex Thread Mills Carbide Mini Type - Metric - M6, M7 x 0.5 - MT7Carmex Thread Mills Carbide Mini Type MT7 are precision engineered tools designed for fast, reliable metric threading in a wide range of materials. Ideal for machinists and production environments, they deliver consistent results in both internal and external threads, especially in deep hole applications. Material and coating: Carbide MT7 sub micron grade with a TiAlN multi layer coating (ISO K10K20) for outstanding wear resistance and longer tool