Originally Posted by
JohnDThompson
The Stein tool only works if you have a wrench designed to fit the cup. If you have one of those odd-ball French octagonal cups, or (even worse) the cheap Italian 3-notch cups, you may not have a tool that the Stein attachment can work with.
VAR made a shop-quality fixed cup tool with different jaws to fit cups of various design (but not,
AFAIK, the nasty Italian 3-notch version), but it was quite expensive, especially if you wanted the full set of jaws. The tool is still in production, but I think only one jaw type is offered now.
Yeah, several manufacturers made and/or still make traditional fixed cup tools. These work well, assuming you know which way to turn the threads...

Older shops usually had a campy and a VAR. I should have said Stein or similar fixed cup tool.