Pneumatic Wrench Manufacturers Zhejiang Zhengmao Pneumatic Machinery Co., Ltd. is a professional pneumatic impact wrench manufacturers and air torque wrench factory. The main products are 1-inch impact wrench, 1/2 inch pneumatic torque wrench, 3/4 inch electric impact wrench. The specific scope of application is the loading and unloading of tire bolts in various large and medium-sized trucks, trailers, engineering vehicles, etc., and the loading and unloading of screws in engineering, bridges, and construction. The features of pneumatic tools are: Handle exhaust, front exhaust, rear exhaust. Double hammer structure. The torque adjustment is convenient and fast. It has the functions of forward and reverses rotation, speed, and torque adjustment. For more information, please click here: https://www.zjzmtools.com/product/pneumatic-tools/