Carmex Thread Mills Solid Carbide - With Through Coolant - Metric - M8, M10 x 1.25 - MT7The Carmex MTB Thread Mills are precision solid carbide tools designed for metric thread milling on CNC machines. Building on the MT line, the MTB family introduces through bore coolant to improve chip evacuation and extend tool life, delivering reliable internal threading for demanding engineering applications. Through Coolant Bore: coolant is supplied through the tool bore directly to the cutting zone, promoting continuous chip evacuation and