Anyone able to advise me if a 1x rivet gun, as against 2x or 3x, is useless or not for assembly of fuse (wing is QB) The 1X is a hobby tool. If you use a 2, you'll still have to push your air pressure high and turn it down low when you switch to other tools. I finally decided on the three not only because pressures match, but so I didn't leave high preessure in the tank, step on high pressure hoses, uncouple high pressure fittings, and hear high pressure leaks. Because I"ll use lower pressure, the compressor is smaller. I can carry it in the car and up and down stairs. When you buy a compressor, make sure it's "wet" = you add oil to a sump. Some contractor compressors are unbelievable junk.