Carmex Thread Mills Solid Carbide - With Through Coolant - Metric - M10, M12 x 1.5 - MT7Meet the Carmex Thread Mills Solid Carbide with Through Coolant, MT7 shank, engineered for precision metric thread milling. Ideal for machinists and production shops that require clean internal threads, reliable performance, and longer tool life in demanding assemblies. Through Coolant Bore: Channels coolant directly to the cutting edges, improving chip evacuation and maintaining cutting efficiency in deep internal threads. Thread Sizes: Metric