I know this an old thread. My make shift setting tool is a 7-8mm wrench thats been rubbed against the bench grinder. Set the rivet in the hole,place the wrench on the rivet, place a washer on the unground side of the wrench and then place the bolt in the rivet and use my air impact gun to crush the rivet. Just make sure the box end of the wrench fits directly on the flange of the rivet. Wrench never gets lost as it goes right back in my tool box when I'm done. The grind marks on the wrench mate with the flange on the rivet and bite in stoping the rivet from turning.