Manufactured by 45# steel, such steel connecting shaft rod is durable for long service life. With high accuracy and high hardness, this kind of MT taper shank will not break easily. By connecting the taper hole drill chuck, so that it can be connected to the machine tool, which is easy to disassemble. Moreover, drill chuck arbor is mainly used for drilling, turning and milling, which is practical. Via precision craft by many experts, such a connecting shaft rod is entitled with high performance according to strict rule., Manufacturer: Vikye