Originally Posted by JohnDThompson

Are you referring to the shell, which is part of the frame, or the cups, which thread into the shell and hold the bearings? I suspect you mean "cups."

Do the "slots" in the cup look like this?


If so, the Park HCW-11[/URL] is the proper tool for these. People do use a hammer and punch instead, but if you do, be careful. If you bugger the slots you're in for a world of hurt getting the cup out.