Scientific Cutting Tools TM170-24H is a 30° helical-flute internal thread mill designed for UN 1/4-24 threads, featuring a cutting diameter of 0.170 in and a 3-flute solid carbide body. It cuts with a length of cut of 0.517 in, a shank diameter of 0.250 in, and an overall length of 2.50 in, providing durable threading inside holes. This internal-thread milling tool is used for precise inside threading of small-diameter components requiring UN 1/24 threads.
