Dave, the compressor will be able to power the tool in bursts, just not continuously. The tank is a resevoir of air that provides a buffer when such tools are used. The analogy I like to use is a water tank where the compressor's output fills the tank at a given rate and the tool(s) drain the tank at a differnt rate. You can see that the tool will drain the tank more quickly that it can be filled, but as long as you don't run it long enough to empty it, you'll have full power. So the only question is, will the burst length and frequency be such that the tank/compressor can support it. For one wrench, I would think so. If you had an air sander or drill, or more than one person, maybe not.