In terms of operating capacity, the operation of the pneumatic tool through the handle of the air supply valve and the adjustment of the regulating valve can be easily performed. It can provide more levels of choice in the speed range. At the same output, it is smaller than the power tool Lightweight, pneumatic tools are more suitable for long-term work without heat generation. Even if the compressed air engine is overloaded, the pneumatic tools simply stop rotating and resume normal operation once the overload occurs. Secondly, in terms of environmental application capabilities, pneumatic tools are more resistant to water. Although water immersion is harmful to the tool, it will not cause electric sparks like hardware power tools to cause harm. And because the pneumatic tool can use the internal combustion engine air pump, it can adapt to various bad or harsh environments. Finally, in terms of economic performance, the initial investment of electric tools is small, but long-term energy consumption is high, and the cost of tool repair and replacement is also high. The initial investment of pneumatic tools requires the establishment of air pressure piping equipment, but long-term use has lower cost in energy consumption and tool maintenance.