I’ve been using this Wen rotary tool for a couple of years now and I really like it. It has plenty of power (I’ve never turned it up to full speed for anything I’ve used it for), comes with a bunch of tool bits, and costs a tiny fraction of the price of a similar Dremel tool: [amazon_link asins=’B00A8DXKXS’ template=’PriceLink’ store=’boingboing’ marketplace=’US’ link_id=’20e16ecd-8019-4f88-9fc4-4134237822ab’] on Amazon.