you could just run it over with van tell wife it broke and you need a new better grinder lol

My 4200 dremel just stopped. I read the manual thinking there must be a reset button and saw the part about the brushes but didn't think that work. I found this video and was pretty dubious that just removing the brushes and reinstalling them would fix it, but had no other options and decided to give it a try. Well, it worked!! Needless to say, I was quite surpised! Thank you!

Well I almost threw away my 4200 Dremel away but thought hey maybe someone else had a problem also. Walla… watched your video followed your suggestions and repeated them with mine. Eureka… saved me time and money. Took less than a minute. Thank you again. I won’t hesitate to look for any other situations on your site in the future.

My Dremel just quit. Saw your video. Reseated the brushes. Ta daaaaa!!!!!Thanks a dremillion!!!!

I was ready to toss mine in the trash. Saw your video...BAM! Back to work!! Thanks for saving me from buying a new one.

Thank you! My dremel just stopped wanting to cut anything & didn't know why. Now I know to check my brushes & buy spare ones!💯

Every "Tinkerer" should have at least two of these! I own 3...

So glad I saw this video!!! Thank you!! I thought my 4300 was kaputt. Working like new!!

Thank you so much I had maybe used my 4000 model maybe 4 or 6 times and right in the middle of a project it just dies. So after being bummed thinking it was the dail or something and then I found your video . Sure enough worked just like normal. Thanks for saving me some money and stress. I Appreciate it and keep up the good work .

Yay! Thank you so much for this, it worked.

Can't believe this worked...first time I used my drumel turned it off and it wouldn't turn back on...had to try it a couple of times and stretch the springs a bit and wow! it works

Yep thanks! I have a model 395 type 5 (Variable) which I was using to clean metal cookware with "Sanding Mops" I bought on EBay. The Dremel is about 25 years old but I do not use it frequently. It quit running this past week but was not overheated I thought. So I did open one brush and it looked great and knew the brush was not faulty, but never thought about the little brass contact I noted on the top. Then I watched your video. Before dismantling, I tried the tool again and it runs fine now. All I did was open one brush port and that must have been the one! Saves me from messing with it further. I should have known as I am familiar with old model trains which have such set ups and they eventually fail to run because the armature contact parts wear out. Easy to repair. Same here. PS, I have that little wrench you speak of because mine is the older model which has the "Chuck" mount on the front. Usually I do not have to wrench tighten the attachments in the chuck---hand tight works for me.

Glad you figured it out!

Brian, some time ago I had a HF corded impact wrench, and one of the brushes was missing. I went to my go to guy, and he's got stuff that's well organized. After a little digging, he found one that was close, he rubbed it on sandpaper and got it to work. If a brush holds up, a bit of fine sandpaper can just be the ticket like mentioned above. Glad you were able to get it working.

That’s awesome that is all it was. Great tips brother

Great fix!!!

This helped me with my rotary tool. Was basically brand new and just ceased functioning.

Hey Brian thanks for the great information, pretty simple that rascal is flat out screaming now 👍

Was able to fix mine thank you

I do like your quick-release chuck!

Great!!

The turn it on 5 minutes high speed tip really helped. Before that i stretched the spring outwards a little bit and shaved them completely flat using some 80 gritt.

Thank you! Worked perfect on my 4000. I was kinda upset that it just se

Late question. I have an older variable speed dremel, but it will only run if it's set to the max speed. Would that be a brush issue, or something else?

i will check that copper connection bit, fingers crossed 😂

Nice to know. I didn't think the brushes were that finicky. Also where the heck do you find a Dremel 4200 I looked on Amazon at every hardware store in town. They have 4300 with the same unscrewable stupid chuck. It's like this mythical Beast does not exist.

Half the video spent running high school popularity contests. Quarter of the video discussing things that have nothing to do with the problem.

i have one the variable speed quit working now it runs full speed no matter the setting

My brand new Dremel 4000 tripped my circuit breaker, now Dremel is useless and won't work. I spent a lot on this entire set which includes the flex shaft. My Dremel Lite Cordless also won't work! Bought it this year, second time I was going to use it bc brand new Dremel won't work. I'm starting to think the quality of this brand is crap. Any advise on either?

Mine will run for about a half a minute, before shutting itself off, as if a thermal bi-metal device is doing it

Of course nothing works for me. Brand new not even used for 3 hours. Sanded it down. Moved the springs. Nothing...

Helpful but it would have been better if he had edited out extraneous or unimportant chat.

I have the DREMEL 4300, Iv used it 3 times, less then 10 minutes of use. I let my broke-ass neighbour borrow it and he broke it within 5 minutes.. He said he was using it as a drill and it just shutoff mid drilling... FIRST OFF, WHY ARE YOU USING A DREMEL AS A DRILL..... when i have 3 drills and one i could of gave him for free Anyways, lets hope i can fix this thing.... P.S> (DONT LEND YOUR THINGS TO MORONS OR PEOPLE THAT CANT AFFORD TO BUY ONE) P.S.S> (DONT LEND ANYTHING THAT YOU CANT AFFORD TO TAKE A LOSS ON ~ 60% of Items lent to people are not returned and can ruin a friendship)

Didnt work for me unfortunately, only had it 3 months. Terrible quality

talks too much. Get to it.