RHX 2 Set of Brass Collet Fits Dremel Rotary Tools Including 1mm/1.6mm/2.3mm/3.2mm

Decent Dremel collets. I had a difficult time finding exact-sized replacements but this listing has the dimensions I needed to keep working on my projects. I used a vernier caliper to measure my broken collet before ordering and that helped.

These collets I ordered for my draper rotary tool. When I purchased the tool it was missing collets, so instead of sending it back again I ordered these. They arrived quicker than the two weeks stated and I have already used them a few times.The seem to do the trick and a lot cheaper than most places I came across. They are sturdy and I can see then lasting. The only problem is I might loose them before then!

Did what they were supposed to do and held up well. (Ron A)

Amazing value if you are prepared to wait as it is shipped from China. Worth the wait. 2 sets make this even more of a bargain. I have a rotary tool but not a Dremel, and these collets fit very well. The picture tells it all...a wide range. They feel sturdy as well and I can't really see them breaking or splitting. Pleased with my purchase.

These fit and work fine in my Dremel 395 although the collets are a different shape than the originals. They are decently machined although not perfect. Other than some minor infractions there were only two in my set that needed a little deburring on the slits and base of the shaft. There is more than meets the eye when it comes to collet design and machining, and while I know a bit these have inspired me to go look up more information on design. The bases on mine all measure 4.1mm and do fit a little loosely in the motor shaft (Dremel originals are 4.3mm to 4.4mm and have a slightly snug fit)...but they work fine. The overall length is indeed shorter at a hair over 16mm while the originals are 19mm but this is inconsequential in operation. The chamfer at the bottom is cut at the same angle as the original but is of much shallower depth. This seems to make them ride "high" in the motor shaft, but again, they work fine. What's interesting is that the main shoulder/gripping area of these brass collets is longer than the originals, giving good/better gripping power on the bit shanks. Maybe that's necessary because they're brass instead of aluminum but at any rate they grip very well. As for precision and centering, they are no better or worse than the original Dremel collets, which I often find needing to adjust a 2nd or 3rd time to get a true rotation, but this depends on the bit (this is true even for bits that I know are very precise in their straightness and concentricity). I actually mistakenly bought this set instead of another on here I was looking at. I needed a 3.0mm collet to fit some burrs I bought that were advertised as 1/8" but were in fact undersized. My good fortune is that the 3/32" collets in this kit both appear to be a bit oversized and fit the 3mm shanks nicely, so it works out great. I think if you have nonstandard bits or a range of drill bits you're probably better off getting the adjustable multi-chuck instead, despite its quirks that are still present (but do get the Dremel branded model that is made in Germany...the overseas copies of these all seem to be poorly done). It'll be interesting to see how these brass collets hold up and grip over time compared to aluminum. If one of these Chinese manufacturers or someone else would make a legit Dremel-proportioned brass collet with higher quality precision, they would have a gold mine of consumers ready to buy. But as someone said in another review on these, if you need precision, Dremel is not the way to go anyway.