Thanks, I missed that little PDF link. I've extracted the parts diagram below, it's definitely of a slip clutch. So you're probably correct about the error being that of the wrong product (ORC) description. But no wonder I couldn't see the friction discs. They - and the center pressure plate - seem pretty small compared to my $150 Eurocardan (the yellow diagram). The HF manual indicates it can't be accurately adjusted to match PTO horsepower either. But for only $60, I might consider test-driving one on my five foot rotary cutter.
//greg//