Carmex Thread Mills Solid Carbide - With Through Coolant - G (55 Degree) BSF BSP - G1/2, G7/8 x 14 - MT7Carmex MTB Thread Mills in solid carbide deliver precision internal threading with throughcoolant capability. Designed forBSF BSP applications, this MT7 shank tool targets 55 BSF thread forms and fits through hole machining needs with reliable, repeatable results. ThroughCoolant Bore: coolant is delivered through the tool bore to the cutting edges, enhancing chip evacuation and maintaining stable temperatures for cleaner threads. Solid Carbide