Dremel, of course, has had rotary tools out before, but they say fall 2009 Dremel 4000 rotary tool is the ultimate in the category. It works with all the accessories for previous incarnations of the Dremel rotary tool, plus the MultiSaw and Planer attachments originally designed for the 400 Series XPR. New attachments will also come out with the 4000 — a Detailer’s Grip and a Sanding/Grinding Guide. New motor technology with electronic feedback control adjusts tool speed — variable from 5,000 to 35,000 rpm — to the workload. 2009 prices on the Dremel 4000 range from $79 for the tool alone to $149 for a kit including the two new accessories.