I believe I bought this from Micro-Mark, if I recall correctly. I don't use it very often, but it does come in handy to sand an edge smooth on a piece of wood. I have used it for thicker styrene, but it runs too fast and mostly just melts the plastic. The unit by itself is very unstable, but I mounted it to a section of plywood, and it stays on that permanently. I can then pull it off the shelf when I need it and clamp that board to the workbench. It has a pretty good dust-collection port.