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Incredibly, after using Dremel’s rotary tools for years I somehow never stumbled across the chuck accessory until today.  This replaces the standard quick-change collet to allow installation of most any accessories without the use of a wrench.  Not only does it allow for quick accessory changes, it opens up a bit the range of accessories you can install.

Dremel says it “accepts all accessory bits with 1/32″ to 1/8″ shanks” and works with the following rotary tool models:

  • 275
  • 285
  • 395
  • 398
  • 400
  • 750
  • 800
  • 780

Of course, you can chuck other items in there as well, as I’m sure you’re imagining right now.  I can’t believe I didn’t find this earlier.  Street pricing starts around $7.

Chuck, Model 4486 [Dremel]
Street Pricing [Froogle]
Via Amazon [What’s this?]


10 Responses to Lose The Collet And Wrench, Use A Dremel Chuck Instead

  1. Stuey says:

    I have mixed feelings about this – my impression is that the regular collets provide better horizontal stability and this the adjustable chuck is more for light duty work, or drilling/engraving/vertical stresses.

    I see this more as a complement rather than a substitute.

  2. Pat says:

    Stuey – you are right and wrong.

    I have one, and it does not hold a tool I am using hard as well as the regular collet under ideal circumstances

    But, if you are using an off brand tool with not quite the right size diameter or have a worn aluminium holder thingie, then the chuck gives better grip. Also, with the chuck any small drill you have can be used with your dremel.

    The chuck is fast to install – pull off the collet & the ali holder bit, screw the chuck on, and off you go, so it is not a problem to switch back and forth.

    I thought everyone had one of these! They are worth it (

  3. Buck says:

    I use the collets for things that I really don’t want coming loose, like cutoff wheels and the dremel router bits, but if I’m drilling or polishing something I’ll use the chuck.

    The most annoying thing about the chuck to me is that it’s kind of big, and if you’re not careful the knurled grip area will happily grind a nice chunk out of your work.

  4. ned.ludd says:

    These things will break wire sized carbide bits, one after another after another. If you’re going to be using a dremel in a drill press for making circuit boards, stay FAR away from these. Stick with collets, and stop breaking bits every 3 holes. These adjustable chucks just don’t run true enough for the task.

  5. Jim says:

    I had one of these for my dremel for awhile and finally decided to “retire” it (i.e. it’s still in my toolbox I just don’t use it anymore). I too found the problems to outweigh the benefits. As others have mentioned, doesn’t hold as good as collet, easy to grind the heck out of your work (or fingers), break skinny diameter carbide bits, etc. Basically I asked myself one day if I really needed this and the answer was nah.

  6. Smee says:

    Maybe my chuck is different from the one everyone else seems to be using, but I’ve been using one almost exclusively for years. In fact, it came with my current Dremel and has been used from the start. I’ve never encountered problems with bits breaking. Everything seems to be as true as I get with a collet.

    I do agree that you have to be careful about accidentally grinding away what you are working on.

  7. Arnold says:

    I’ve had the problem of bits breaking, the chuck not being tight enough during operation (something that isn’t a problem when using a collet), and also while cutting mdf, it would gunk up the tiny springs in the chuck so essentially the “jaws” wouldn’t open or close without coercion.

  8. Frank says:

    I wish they would bring out a chuck to support standard drill bits up to 5-6mm. This would be most handy when using the drill press accessory drilling into wood. For the time being though, there are drill bits up to this size designed to fit the Dremel. I guess they will have to do for now. Still, it would be more practical to have one chuck to accommodate standard drill bits of this sizing.

  9. Michal says:

    Does anyone know if this chuck will fit on a Ryobi HT20VSK? The tool’s non-standard and won’t tighten Dremel collets properly. TIA

  10. Bill says:

    I can not find a keyless chuck that will fit the Northern “Ironton” brand tool. A dremel 4486 has smaller threads. Figures they make sure the cheaper Ironton tool can not use the Dremel keyless chuck. Waste of $10. Wish my Dremel tool was not stolen…

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