I currently have one 220V outlet in my shop used for my table saw. I would like to add another 220V tool, a jointer. Is it reasonable to add another outlet in this run? Both tools would NOT be running at the same time. I could just relocate the existing outlet so I can get to it easier and plug and un-plug the two machines but I would like the run the source into a junction box and attach two outlets. If this is fundamentally ok, what is the best way (safest) to make the spice? Wirenuts, ferules, three small buss bars?