my guess is he means a buffing wheel. What size is it -6", 8", 10" 12" .....? Those buffing wheels are getting cheaper and cheaper. I've got a 12", but don't like to use it as I haven't mastered using it without leaving swirls, so I do it by hand when I do my 1999 since the swirls really show on the black, but on the green 1994 the buffing wheel swirls don't hardly show and that wheel makes removing the hand-installed polish and wax a breeze to remove.
I'd say if it'* an 8" or 10" get it. 12" and larger is too large as the flat open areas on our Bonnevilles aren't much more than 10"*.