Tool to install 81-310?

Received my order of five kits 81-310 and ten 81-236. Would like to know what type tool/tip do you recommend to "curl brad" the copper colored shaft end. I guess this has to be used with a bench press or bench vise. They cannot be pounded without precision because the shaft and wheel assembly has to glide in the wheel housing that is fixed to the closet door.

After further research I used the washer and grommet shown with the brass fitting that came in your parts kit. If you were to include two grommets and washers in your kit, that would alleviate the need to go to several stores trying to find something to work with your parts.

The grommets should come with splines/rough exterior surface on its outer sleeve to enable the grommet to better grip the brass fitting when it is pressed into the fitting. Otherwise, I caution the novice to use a center punch to crimp the inside of the grommet in at least two opposite positions to keep the grommets from coming loose once it and the washer has been installed through the wheel/roller assemble. I am including a photo of the items to which I am referring.

No, they will not be held in place by friction. If you can't find grommets with splines or a rough exterior on its shaft, then you must use a tool (center punch) to put a couple of indentations on the inside of the grommet after you have pressed it into the brass fitting.