Concrete Grinding Plate for Swing Machines - Removal Tool for Concrete with 5 Cup Wheels - MAX RPM 175

Will this fit a Waxie 17 floor machine, I beleive I need 16 inch?

2 questions; 1. Size of cup wheels and arbor size? 2. is this better than the diamabrush removal tool to prep concrete? if so, how? Thanks guys!

how many sq ft concrete can this grind?

will this remove mastic and varnish from wooden floors?