Most directions say to use a piece of pipe to drive bearings. This is great if you happen to have a piece of pipe the right size to fit outter race of bearing. I prefer to use a socket, but having the right size can be a problem. Agrisupply in Garner sells King Tony sockets for around five bucks each. It isn't hard to find a socket that's the right size. Being so cheap, I just keep them in a zip loc bag where I keep spare bearings