This block sander is the small Mirka sander rebagded in Festool trims, so the Mirka products work and fit the Festool sander. I have had mine for sometime now and could not be without it. Both will interchange pieces and parts and papers. Peter Parfitt has a wonderful piece on his site, check out his sanding dust in the workshop, quite inlighting and should be seen by anyone who is near a woodworking shop, by that I mean loved one who maybe breathing the air in the home with a shop even near it. I have brought dust and other dangerous thing into my home without thinking and harmed my wife. Once was enough to teach me to change my ways when it come to dusts, my wife has a breathing condition that is harmful to her. So think about where the dust is going and where it is landing, and get good DC products like the Festool and Mirka. B