SOURCE: using the flex shaft attachement.
I dont think it should get that hot. Dremel has a program for the 225 Flex Shaft and for 17.90 they will exchange it for you. Send it to DREMEL 4631 E. Sunny Dunes Rd. Palm Springs, CA 92264. Their phone number is 1-800-275-2052. Hope this helps. Dave
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.
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.
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!
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.
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