At the armorers school you are taught to tighten the ejector rod tightly in a vise then screw the cylinder onto the rod until your knuckles turn white. (I made up the part about the white knuckles!) They just use a plain jawed bench vise. No pads, no special tools. I have a Power tool that I keep in my range tool box and that works well also and is good to have when you're not near a workbench.