Yeah, they basically have a tool that has left threads and is tapered on the inside. It takes those babies right off. I had to get one when one of the crappy locks on my wife's Probe broke. Unfortunately it didn't leave enough nut for me to get a grip so I wound up using the sledge hammer and socket method which worked like a charm. Definitely use Craftsman for that type of removal.
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351W 89 Mustang GT Convertible