Many people wonder if using air tools is worth the cost purchasing an air compressor, hoses, and the air tools. Why not just get an electric impact wrench or electric drill? Sometimes electric tools are a great choice but there are many reasons why air tools are superior.
First of all, you have the option of using air tools in a wet environment. You can't get electrocuted with an air tool. Feel free to drag that air hose through a puddle and stand in it with bare feet. No problem.
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Compressed air won't hurt you. Also, air compressors are a portable power source. You can operate your air tool anywhere you can haul your portable air compressor.
If you are out on a remote jobsite, electricity can be a problem. However, with an air compressor and the right air tools, you are in business. Another reason is air tools are generally more robust than their electric cousins. Most air tools are built out of metal and can withstand a substantial impact.
Today, most electric tools today are almost all totally plastic. Finally, air tools are far more powerful than electric tools. If you really have some tough lug nuts to loosen, nothing beats a 1/2" impact wrench to show that nut who's the boss!