Advantages of Mill-Thread Solid Carbide: Thread is generated in one pass. Spiral flutes allow smooth cutting action. Shorter machining time due to multi, 3 to 6, flutes. 2.2mm and up cutting diameter. Threads up to sholder in blind hole. Longer tool life due to special multi-layer coating. Same tool can be used for a variety of materials. Excellent surface finish. Low cutting pressure allows thin wall machining. Same tool used for R.H and L.H threads. MT-Thread Mills without internal coolant. MTB-Thread Mills with internal coolant. MTZ-Thread Mills with internal coolant through the flutes. MTQ-Thread Mills that include relieved neck for deep working pieces. FMT-Fast Thread Mills with internal coolant bore.