Question about Dremel Tools & Hardware - Others
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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Posted on Jan 02, 2017
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
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
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
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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