Had tried the two-nut method of using rivnuts before buying this, and had all sorts of issues. This Kincrome makes the process a breeze. Simply drill/prepare hole, thread rivnut onto tool, and squeeze together until the resistance increases significantly. I recommend having a play with a bit of scrap material. Works well with counter-sunk rivnuts also, leaving a nice flush professional finish with perfect crimp on the backside. Always nice to have the right tool for the job.