Due to the tightening bolt in current, which uses Air Impact often cause the problems of vibration ,the reaction to
the Air Impact and still can not control the torque has need to use Torque wrench control again. In order to get the required torque ,
Reduction of working time and increasing productivity. Therefore need to change to Impulse which can control torque by using
shut-off system and enhances the safety of the user. Because Impulse is vibration of the impulse is minimal.