Carmex Thread Mills Multifunction - With Coolant - UN (UNC UNF UNEF UNS) - 3/8 - 1/2 x 16 - MT7Carmex's Thread Mills Multifunction with coolant is an all in one threading solution designed for shops that need fast, accurate threaded holes. It combines drilling, chamfering, and thread milling in a single pass, cutting cycle times and reducing tool changes. All in one operation: Drills, chamfers, and mills threads in one pass, eliminating separate drilling steps. Thread standards supported: Compatible with UN, UNC, UNF, UNEF and UNS thread forms