1. Take into account the size(s) of rivet nuts you are most likely to be using from the range M3, M4, M5, M6, M8, M10, M12 2. Consider how many rivet nuts you might install over the expected life of the tool, then use our guide cycle times below to work out the total installation time. This may help you settle on which type of tool suits best. Approx. installation time per rivet nut, from our in-house trials! Plier or Lever Arm Type Tool 19 seconds Lever Arm Tool with Quick-Spin Spindle 13 seconds Cordless Tool …