Pneumatic wrench(Impact wrench), also known as ratchet wrenches and power tools always fit,button-type pneumatic quick couplingsavailable in minimum consumption is primarily a tool for high torque output. It lasts through the power source for a certain quality of object is spin up, and then crashed into the output shaft instantly, which can get high torque output.

Suitable for the motor industry,such as refrigerators,air-conditioning plant,manufacturing industries,such as bicycles,motorcycles are also widely used in the Assembly and disassembly of screws and repair.