Dremel 4000 3 34 120 Volt Variable
Two examples of why Dremel is still the unquestionable leader in mini-rotary tools:
I recently bought a 4000-3/34 and I wanted to use the chuck I had been using on my old 395 instead of the collets. It didn't fit through the hole in the nosepiece of the 4000, so I took off the nosepiece and enlarged the hole. I wasn't satisfied with the 'quick-and-dirty' job I had done, so I contacted Dremel in Palm Desert in order to buy a replacement nosepiece. Without any questions they told me they'd send it right out to me at no charge as warranty service. When it arrive it was, unfortunately, the wrong part. Well, that's happened to me before, with other companies' tools, so even though they had been good enough to provide it for free (and the tool was working fine as it was) I decided to try again. And again, they told me they'd send a replacement at no cost with no questions or reluctance. Within a few days I had the right part, and I did a better job enlarging the hole (I subsequently discovered that the chuck they're selling now will fit the stock nosepiece).
The reason I had bought the 4000 is that my venerable 395 had broken down and I needed to finish a job without delay. When I opened up the 395 I discovered that there was a "flexible link" between the motor and the output shaft, and it had stripped. It was a short piece of flexible plastic tubing with internal splines to engage the metal shafts at both ends, and it was shredded inside. Initially I thought this was a regrettable design flaw, but I realized that it's just the weak link to prevent the user from damaging more expensive parts by challenging the tool too hard. Anyway, when I went to order the part, the woman who answered knew immediately what I was referring to and was able to complete my order efficiently. She even pointed out that, with the cost of the part being so small compared to the shipping (which was minor as well), I might consider ordering a second one. She encouraged me to leave the second one in the sealed package to prevent it from weakening from oxidation, and it would be ready to install if I should ever need it. Considering how old my 395 is, I'm not worried about that being any time soon. The parts arrived in a couple of days, and my 395 is back in action. And, considering how nice an upgrade the 4000 is, I don't mind having been forced to become the owner of two Dremels.
Dremel tools are well-designed and well-built, as long as the user works within the limits of their appropriate use (these are not industrial die-grinders). Craftsmanship is more a matter of patience and care than brute force. But any tool will require service at some point, if it's used a lot over the years, and that's where a manufacturer shows what they're really all about. With the kind of service I've received, I'd say it's no wonder that no other manufacturer has made much of a dent in the mini-rotary tool market. Dremel makes good products in the first place, and they back them up well. I'll never even consider buying a Dremel-like tool from anyone else!
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