A winner! HF's version of a Dremel,
Heavy Duty Variable Speed Rotary Tool
I bought this a while back and used it for the first time today. It feels a lot more powerful than the Dremel tool I used for years.
Folks, wear a full face shield with these. I did, luckily. I had ordered additional tools for it via ebay, and a cheap rotary wire brush failed spectacularly. I pushed the wire brush too hard and its shaft bent to a right angle. At 35,000 rpm this made vibration so severe I thought it was electric shock, and it took a real struggle lasting a few seconds to get my hand back to the switch to shut it down. If it had flown off it would have hit hard. After a fresh tool was mounted it was clear that this near-disaster hadn't hurt the 'dremel'.
Summary - I think this equals the $50 (Amazon) real Dremel and I think it may exceed it. And - don't buy accessories for this from the cheapest Ebay seller!