yes but you will have to make a spacer as the disc hole have slack.
I could not get this to fit a 3/8 in arbor, so I would say 5/8 and 7/8.
This is not a 3/8" arbor. It is more like 7/16" thread size. It may be metric as it is made in China. It doesn't fit anything I own and isn't worth the trouble to return it. It certainly doesn't fit Home Depot 3" discs. Garbage!!!
Hi Mark, Diablo does not carry any 3" or 4" flap discs. We do carry 4.5" and 7" Flap Discs that are meant to be used on a grinder.