Review (5/5): Washers/spacers
Only one problem, if you replace a standard abrasive grinding wheel that uses very large washer/spacers, they will not work with this wheel. it has a 5/8" arbor that extends beyond the interior dimensions and the large washers will not fit. and you might need extra washers to space the wheel out, so it doesn't rub the inside of your grinder. mine is a Ricon slow speed.
but it sharpens my turning tools excellently so it was worth the modifications