Carmex Thread Mills Multifunction - With Coolant - UN (UNC UNF UNEF UNS) - 1/2 x 13 - MT7Carmex Thread Mills Multifunction with coolant is a single tool threading solution designed for MT7 holders, capable of forming UNC, UNF, UNEF, and UNS threads at 1 2 x 13. It combines drilling, chamfering, and thread milling in one pass, delivering fast, reliable results in a wide range of materials. All in one operation: Drilling, chamfering, and thread milling are performed with a single tool, eliminating multiple setups and reducing cycle time.