Air tool and washers supplied appear to be well constructed. The package was complete and the instructions were pretty good. Unfortunately, I found the torque unimpressive at best. On wood, metal, and tile surfaces with a "green" (relatively thin) disc, applying pressure will stop the tool completely. I may need a more powerful compressor but I would expect more than 100psi for the tool. So for very, very light applications this could work well. But if you can't sand the board or polish the rust on the metal, it can be considered unsuitable for anything but the lightest jobs.