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I have dremel 4200 ezchange bit broke inside collet how do i take collet out

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  • Dremel Master
  • 53,745 Answers

Remove the collet nut
use pliers or the like and pull the collet from the shaft jaws
remove the broken bit
put the collet back in the jaws and refit the nut

Posted on Oct 22, 2016

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 218 Answers

SOURCE: collet base removal

Try using a tapered wood screw or sheet metal screw as an extractor. Choose one of a size that will let its tip go down into the broken collet and get a grip when you twist it. If that fails, you might use a screw extraction tool.

Posted on Oct 13, 2008

rowdy45176
  • 2176 Answers

SOURCE: dremel model 365 type 1 collet lock latch is worn

I would go to Dremel.com or call their help line at 1-800-437-3635 and speak with one of their specialists.

Posted on Feb 25, 2009

VtToolMan
  • 704 Answers

SOURCE: My Dremel lock nut won't budge. My collet is

You'll need to use either the built in shaft lock to hold the collet in a fixed position, or use a pair of slip joint pliers to hold the shaft of the bit, while you use the wrench to loosen the collet. Slow and steady should get it loose. Another option is use some penetrating oil sprayed lightly onto the back of the collet to help loosen it from the shaft etc.

Posted on Jul 24, 2009

  • 700 Answers

SOURCE: can't unscrew collet

it is possible that you stripped lock mechanism on the collet, for the beginning, never, ever, use wrench to tighten the collet! just hand tied, if it slips, tight it bit more, but with hands only.

i never used wrench on the collet and never have any trouble with any of my dremels.

to close, just hold firmly in one hand pressing locket button, tighten up with other hand, to undo, reverse procedure.

if you find bit is too lose, then you have collet inserts, find that one which hold bit firmly and use it on this particular bit. standard collet is 1/8" (3.175mm), but in the set there are collets from 0.0394'' (1mm) to 0.177" (4.5mm). do not use wrench...

just inspect now if thread is not stripped, on spindle and on collar, if locket still hold, if these are damaged, you need to change damaged part. and follow the advice :-)

if you find this advice useful, pleasae do not hesitate leave your remark and vote4 for me, thanx!

Posted on Aug 02, 2010

  • 1 Answer

SOURCE: I have a Dremel 300 and the shaft lock assembly

The "nub" on the shaft lock assembly (internal) has worn down and the assembly needs to be replaced.

If you feel competent to open your Dremel yourself (and it's not on warranty) then order the shaft lock assembly from Dremel (early 2011 price: $1.25, not sure how much postage & handling might be). After opening the tool you will find a metal ring and a small piece (the lock) which it holds in place around the shaft where the lock button is located. Remove the old pieces and replace with the new ones and reassemble the tool.

Otherwise you can send the tool to Dremel to be fixed.

Posted on Jan 21, 2011

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1 Answer

Can't unscrew collet


it is possible that you stripped lock mechanism on the collet, for the beginning, never, ever, use wrench to tighten the collet! just hand tied, if it slips, tight it bit more, but with hands only.

i never used wrench on the collet and never have any trouble with any of my dremels.

to close, just hold firmly in one hand pressing locket button, tighten up with other hand, to undo, reverse procedure.

if you find bit is too lose, then you have collet inserts, find that one which hold bit firmly and use it on this particular bit. standard collet is 1/8" (3.175mm), but in the set there are collets from 0.0394'' (1mm) to 0.177" (4.5mm). do not use wrench...

just inspect now if thread is not stripped, on spindle and on collar, if locket still hold, if these are damaged, you need to change damaged part. and follow the advice :-)

if you find this advice useful, pleasae do not hesitate leave your remark and vote4 for me, thanx!

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My Dremel lock nut won't budge. My collet is stuck! How can I loosen the bit?


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1 Answer

Collet base removal


Try using a tapered wood screw or sheet metal screw as an extractor. Choose one of a size that will let its tip go down into the broken collet and get a grip when you twist it. If that fails, you might use a screw extraction tool.

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1 Answer

Changing a bit on my dremel


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You have the threaded shaft which is hollow and connected to the tool. then you put the proper sized collet inside that shaft and half of it will stick out. This is what actually holds the bit. Next, you put the 'nut' on the shaft, but don't tighten it yet. Put the bit into the hole in the nut as far as it willl go, then back it out about 1/8 inch. Now you can tighten the nut by holding down the button on the front of the tool until the nut does't turn any more. You can buy a 'nut' that works with any bit, no collets used, for about $10. Home depot, Lowes etc or online.

If you're not sure what I'm talking about, you can probably find pics of collets etc. by going to google images.
It would probably pay to contact Dremel or look online for the manual also.

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