Hard alloy milling cutter

The thread hob and the tradition thread machining way compares, in the working accuracy, the processing efficiency aspect has the enormous superiority. And processes time not thread structure and thread gyrotropic limit. If a thread hob may process many kinds of different gyrotropics, the external screw thread. Regarding does not allow to have the transition to buckle or the tool escape structure thread, uses traditional the turning method or the screw tap, the thread chaser is very difficult to process, but uses the numerical control milling to be very actually easy to realize. In addition, thread hob's abrasive resistance is screw tap more than ten times of even dozens of times. Moreover in numerical control milling thread process, to diameter of screw size adjustment great convenience, this is uses the screw tap, the thread chaser to achieve with difficulty. Is suitable specially for the numerical control milling large diameter thread.