3" Wet Diamond Polishing Drum Wheels are used to polish
inside radius such as undermount sink holes. They are much easier than
diamond polishing pads to use when polishing inside radius. Wet
polishing will generally result in better shine and also the tools will
last longer. With 5/8-11 thread, the wet diamond polishing drums can fit
on most polishers and variable speed grinders. There are 8 different
grits including 50 grit, 100, 200, 400, 800, 1500, 3000 grit and white buff.