get a good grinder
Your review: The Dustie worked as advertised. My problem was that I had bought a Chicago Electric angle grinder, which does not have a very good collar to attach the Dustie. My Ridgid wet vac had a hard time keeping up with the very fine dust only because the Dustie did its job so well. If more than one time use, get a decent grinder and a vac meant to handle fine dust.