Carmex Thread Mills Solid Carbide With Chamfer - For Aluminium - UN (UNC UNF UNEF UNS) - 3/8 x 16 - UnCoatedThe Carmex AMT solid carbide thread mill with chamfer is engineered for high speed aluminum threading, delivering precise, ready to use internal threads in UNC UNF UNEF UNS forms. Designed for machinists who demand reliability and clean finishes, this tool combines a rugged carbide core with a chamfered threading geometry for a smooth start and consistent results. Tool Type: Solid carbide thread mill with chamfer geometry optimized for aluminum