I've used a Dremel with reinforced cutting discs to cut through leaf spring eyes and shackles. The problem with the Dremel is that it will get hot if its run too long. It's obviously too small for this type of work. I stopped repeatedly to let it cool. I am thinking that a simple die grinder would be the better way for this now that I have shop air. Is a 26 gal 7 cfm compressor good enough to drive a "good quality" die grinder? The harbor freight air cutoff tool I bought is an air hog, but many cheap air tools are.