Carmex Thread Mills Mini Type - For Hard Materials - MJ - MJ 12 x 1.75 - MT6Carmex Thread Mills Mini Type is engineered for precision threading in hard metals, delivering reliable M12 x 1. 75 threads with a robust MT6 shank. Designed for shops that routinely machine hardened materials, this solid carbide thread mill emphasizes durability, accuracy, and a clean finish. Thread Size: M12 x 1. 75 (MJ 12 x 1. 75) for standardized, accurate threading in tough workpieces Mini Type Design: Compact geometry optimized for tight pockets