Like this...FYI rivnuts can be installed without the use of a rivnut pulling tool. See this link: http://home.btconnect.com/astro-site/pulling_rivnuts.htm
I have a rivnut pulling tool and it works extremely well, however it cannot be used in close quarters. I have used the technique shown in the link many times over the years and it works extremely. If your only use for rivnuts is going to be during your build. I would recommend trying the technique vice buying a special tool that will only see limited use.