Has anyone ever used regular air tools underwater? I run a small commercial pool service company. I do alot of rust stain removing in the bottom and sides of pools. The cause of most stains are wire ties or rebar to close to the gunite or into the plaster. I have been removing the plaster with hammer and chisel. Removing the wire or rebar with file and or saw. My budget will not let me purchase a real underwater tool. Just wandered how well air tools would perform under water. The life of the tool.