No problems, whatever works I guess. As soon as I say one method there will be 20 other ways to do it. The method I described is in the operating instructions, which by the way are crap. As a heads up, wind the tool in reverse, either by hand or in the drill until the treaded spindle is at a stop, bu the hex drive shaft. Then screw on the insert, and reverse the direction of the drill to lock the rivnut in place. I found a 0.5 - 1mm clearance was about right, and push the rivnut hard against the locking surface to stop it spinning - little 'findings' I noticed.