Pneumatic tools powered by compressed air. Air-driven tools used for assembly, machining, and maintenance work in manufacturing sites, including impact wrenches, air drills, grinders, sanders, nailers, tackers, cutters, etc. Compared to electric tools, they are lightweight and suitable for continuous use, and can be safely used in explosion-proof environments. Requires compressed air supply from compressor, with many featuring torque adjustment and speed control functions.