Why the Dremel 4000 is SO Much Better than the 3000

The Dremel 4000 is far superior to the 3000 for one major reason. I take them both apart to show you why.

Tools in this video:

[johnbarrett]

I just had this problem with my 3 month old Dremel 3000, returned it with the bit stuck in there. Didn't want to take it apart and void the warranty. Was going to exchange it, but they were out of the 3000. So I got the 4000. After watching this video, I"m glad I did! Thanks for pointing the better locking mechanism.

[atunguyd]

Went to the effort of disassembling the 4000 and showing us how the locking mechanism engages better and completely overlooked another important update - the spindle lock cannot be pressed down when the tool is on - you can clearly see that the on/off switch when slide into the on position locks the spindle lock button from being depressed - that is also a very good upgrade, especially with those new beefy locking pins that would cause some damage if you pressed the spindle lock during opertion.

[dannywilliamson]

Rookie mistake. When putting any bit into the tool, press it to the bottom of the collet, and then back it out about 1/8" before you tighten the lock nut. To remove it, just loosen the lock nut and bump the bit against your workbench or vise to seat it all the way into the collet. That will break the grip every time. That's the beauty of tapered holds like a gorilla. You just gotta know the trick.

[SevenSixTwo]

I once cut out the floor of a GMC truck from inside the cab with a Dremel 4000 and Ez Lock Metal cut discs, to get to the fuel pump (didn't want to drop the tank, too much hassle). They are very capable little grinders, if you are patient. The Dremel's precision was what I needed for that particular job.

[kaifiain]

Thanks for this video. It’s just answered my question as to why I can’t loosen the nut lock. On my 3000. Just keeps slipping. It’s exactly the video I needed to find. Also great to have the tool opened up so you get a clearer idea of how it works.

[gorezone]

That got me answers on 1 of my biggest problem, had 2 Dremel 3000 both got worn out pin and the groove. I used parts from first that broke on the second one but that one broke today.

The other problem with 3000 is the speed Button gives up and runs to fast not being able to lower speed.

I think ill get the 4000 instead.

A tip if groove and pin wears out you can drill a hole right thru were the groove is and remove button and stick a steel pin thru each time you wanna change tool

[tonyobyrne]

The bearing is much closer to the collet on the 4000. This will reduce wobble even more.
Thank you for the review!

[bigwilliearmitage]

While there is no denying the 4000 has a more robust shaft lock, this is really not an issue for most DIY types who only use the tool periodically as needed. You seem like a heavy user and you definitely should be using the stronger tool. I've had a similar version of the Dremel 3000 for years and don't have a problem with it. But, I only use it periodically in my shop. The smaller, easier to handle size of the 3000 is more important to me. Good video for those who need to know this.

[thereeljahjah]

Best explanation EVER!! I really don’t care so much about which is more powerful than the other. You want loads of power, get a Dewalt or something else. These things are for intricate work and it’s more about many uses for fine detail.
That wear and tear information is so critical.
THANK YOU!!

[Arne]

my dremel 3000 also broke, that pin just wore off like nothing after a little heavy use.
So worth it getting the 4000 instead just for that.

[todddudley]

good video. no need for me to worry about because I use a Dremel flex shaft. thanks for the info.

[drevil]

You sold me on that locking mechanism. Thanks mate

[andres]

I've been having that locking pin problem. I replaced it with a fresh one and was able to change the attachment twice before it broke again. Fortunately it's now stuck with the most useful tool, so I decided to use it exclusively as a cutting wheel. Whether I buy a new Dremel to replace it for other functions was hinging on whether the next model solved that problem. Looks like I'll be buying a 4000.

[killroy]

So crazy I'm in the market for a new Dremel so was watching videos the exact problem you're describing happened to my Dremel and I don't use it very hard.

[michealadams]

Thank you for showing the difference between the two models.

[ATS]

Great Video! I have been looking at the 3000 and my wife bought me the 4000 for Christmas.
Glad to know I got the better unit. :)

[matejcermak]

just always make sure you are pressing the button all the way inside and holding it there while un/tightening the chuck. It is similar on more kinds of tools, this kind of locking and if you are not fully pressing the button, and it snaps few times, you end up with free shaft. Better if you could put two keys, on both - shaft and the tightening nut

[Gonzohead-GSXR]

Thanks for that info 👍
Wished I had bought the 4000. Now I know about the collar lock I’ll be a little more careful.

[homerj]

Did they put a decent power flexible power cord on the 4000? Every Dremel i have ever had had a plastic power cord that comes out of the case all kinked and it stays that way.

[davidwoolsey]

I am in the market for a Dremmel-this helps alot! Thank you!