You say cutter. I say bits. Must be a regional thing.I've bought Onsrud spiral up-cuts from Lee Valley and they are very good. Went through 3/4" MDF like butter in just two pass. Could have even done it in one, but didn't try.
I'll look up Bosch and Grizzly next time I need a new "cutter" (see, I can adapt!). Since I've got my portable router table setup, I'm looking at cutters that I've never considered before.
thx,
Gar.