Carmex Thread Mills Carbide Drill Mill - UN (UNC UNF UNEF UNS) - x 18 - MT7The Carmex Thread Mills Carbide Drill Mill is a precision multitool engineered for highvolume internal thread production. It combines drilling, chamfering, and thread milling in a single pass, making it ideal for shops that require fast, repeatable internal threads in UNC, UNF, UNEF, and UNS forms. Two fluted drill thread milling cutter: Performs drilling and thread milling in one operation for streamlined workflows and reduced tool changes. 45