Question: how much scfm for air tools?
Answer: However, most tools require a great volume of air to run at peak performance: Anywhere from 4 to 5 SCFM up to 15 to 20 SCFM or more. In contrast, a nail gun requires only about 2.2 SCFM to operate. Fortunately, you don't need a compressor the size of a Volkswagen to run most air tools.