Carmex Thread Mills Solid Carbide - With Through Coolant - UN (UNC UNF UNEF UNS) - No. 8, No. 10, No. 12 x 32 - MT7Carmex MTB solid carbide thread mills with through coolant are designed for precise internal threading in through holes, accommodating UNC, UNF, UNEF, and UNS thread types. Built for durability and dependable performance, these MT7 shank tools support No. 8, No. 10, and No. 12 threads with a 32 mm length, delivering clean, repeatable threads you can trust. Throughcoolant bore: delivers cutting fluid directly to the cutting edge for efficient chip