When shopping for a diamond polishing pad always looks for certain key features
. One, it should have variable speed. The RPM should be somewhere between 500 RPM and 3000 RPM. Second, make sure that a concrete grinder is not used with these pads since they are a completely different tool that should not be used for polishing countertops or with polishing pads. They will burn up the concrete polishing pads and can often cause harm to the countertop or the person doing the countertop job.