Anti-static design to prevent leakage and damage due to static electricity and the PCB. The contact pads without soldering methods may waive parts of displacement and thermal shock. Can greatly adjust the air volume and temperature, can be welded QFP and SOP type IC, welding and soldering can be selected according to the requirements of different nozzles. The use of alloy heating element, nozzle and heating element together with the international brand. Pull off air after welding work is completed the work delay and prolong the life of the heating element and the handle.