The device is mainly used in the high-speed drilling of circular flanges, boilers and heat exchanger tube plate, carbide drill can be used for high-speed internal drilling or high-speed steel twist drill bit outside the cold drilling. The machining process controlled by the Siemens 808D CNC systems, it’s automated, high-precision, multi-species, high-volume production. Welcome to visit our official website : http://www.cncprocessingmachine.com