I have had to do search on gravel terms more than a few times so as to convert the posters terms information to whats used in my area. Made me wonder what in the world a few times at first.
Big Tiller,
Believe if you go to the power trac website, they label their rotary mowers as Rough Cut mowers. Moss Road would be more knowledgeable here, it has been a while since I have looked at their attachments.