Vertical milling indexable inserts and tool holders to perform a wide variety of threads, grooves, chamfers and more. Advantages of CMT - Vertical Mill-Thread: Ground profile inserts for high precision and excellent performance. Working at high machining parameters, with high surface quality. Solid and accurate clamping method enables full repeatability. Same insert for right-hand or left-hand threads. Toolholders include weldon shank and coolant bore. Chamfer inserts are also available.