自动去毛刺完美契合 螺纹的修光刃实现了刀片对已加工螺纹的顶径的修光， 保证了加工螺纹后不必去毛刺，提高表面光洁度。 THE POLISHING EDGE OF THE THREAD REALIZES THE POLISHING OF THE TOP DIAMETER OF THE PROCESSED THREAD BY THE BLADE,WHICH ENSURES THAT NO BURR IS REMOVED AFTER THE THREAD IS PROCESSED AND IMPROVES THE SURFACE FINISH.