Carmex Thread Mills Solid Carbide - Internal & External Thread - NPT - 1 - 2 x 11.5 - MT7Carmex MT thread mills are built for machinists who need reliable internal and external threading with a focus on efficiency and value. This solid carbide tool delivers precise NPT thread milling performance in a compact, easy to integrate package. Material: Solid carbide for high rigidity, wear resistance, and long tool life in demanding threading applications. Threading capabilities: Supports internal and external thread milling, including National