Automatic tapping machine, automatic tapping machine precision is quite high, screw tapping in the forward and backward without effort can operate freely, and produce fine processing items, will not cause different thread thickness. For sheet metal processing products or light metal, synthetic resin and other soft products, can also be made perfect thread. No quality instability or undesirable phenomenon occurs when the tapping machine processing processing items will not jump: by the rotation of the spindle drive transmission, and do not have to press the processing products, processing products will not jump. Simple operation, promote work efficiency: processing items because do not jump, so as long as there is no need to press the simple device of processing, can play high work efficiency. Positive → reverse → positive → reverse...... Continuous circulation and forward rotation → reverse → stop one-way circulation has a specific button switch to operate, in addition to the installation of a foot switch, selective operation, continuous circulation, one-way circulation can be automatic, the operator's hands can safely leave the machine.