Dremel 8200 / 8220 Teardown - How good is a cordless Dremel after 5 years of use?

In this weeks video we are taking a look inside the cordless Dremel 8200 Multi-tool which I've used for the past 5 years on a DIY basis mainly working on cars and metalworking projects. Left find out together how good it still is.

After doing a bit of research in preparation for this video I found out Dremel has now discontinued the 8200 but it's replacement, the 8220 still is very much the same tool. Besides the addition of the LED light and the "marketing" decision to call it 12 Volt. (they actually both operate on the same 10.8V nominal voltage)

Disclaimer: This teardown is performed without any incentives on a privately purchased item and in no way related to the manufacturer.

A few useful links to purchase a Dremel 8220 Multi-tool:
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[GannDolph]

Great video and teardown. These units outlast the Plug in mains ones in my experience, and they can be maintained since the parts can be ordered for reasonable amounts. btw there is one MOSFET, the other TO220 device next to it is a freewheeling dual shortly diode.

[Brandon-okbd]

Now they've got the 8260 can't wait to check it out claim of a 20% power increase from the 4300 model which has a plug. The 8260 is "smart" cordless and brushless. Excited to see what it's about for $160 USD hope it's all they've talked it up to be

[E_STI]

I have the 8220 and bought a spare battery from Amazon and it died after a few months but I just bought a spot welder to replace the one dead cell and now I’ll have two batteries again for the dremel.

[truckerjay]

Would love to know how to change that bearing?

[TheMasterWen]

I got the collet stuck in the shaft when it broke off. How do I get those little pieces that are at the bottom of the shaft out?

[richardgraham]

Nice video of the tear down but I would have liked to see how to remove the brushes and how much they had worn in five years.

[LOTPOR]

Ever had a problem with the mosfet blowing ? what model number mosfet is fitted thanks ?

[Marek_Holland]

The 8220 is noticeably more powerful and has a longer battery life compared to the 8200? I'm thinking about changing it, but I have an 8200 in great condition, but 10V batteries are becoming harder to find.

[hover_roller_balance_boards]

What size screw driver to remove screws to take case apart? My 8220 I can’t find the right size. 3.0 mm don’t fit too small and reg size screwdriver standard is too big?? Wtf?

[JamesRichardTaylor]

I came across this video as I'm going to have to disassemble mine due to it not powering on anymore after I dropped it off from a workbench. Disappointing really as it wasnt much of a drop and no external damage. Any ideas on where to look at as to why it won't power on.

[buingocthinh]

Very interesting video. Honestly, I am not refer some machines that operating on a microchip. It is seem that we will depend so much on that chip and will not able to repair if machine fail down.

[youtubehobbyists]

The 8220 is actually more powerful. Comparing the specs from the manual, the 8220 vibrates substantially more.

[Marek_Holland]

Can the brushes be replaced in this 8200 engine?

[Sir-Kay]

This or Bosch Gro 12V? I found the Dremel 8220 with all accessories for $170 and that can only get you the Bosch without accessories, I'll need to fork out another $50 for all extras. What do you think?

[farouqiamin]

Honestly I went through 3 Dremel tools that eventually overheated and burned out, they bog down under pressure and just don't that the torque even when carving simple wood, decided to buy a used Foredom for less that $100usd, smartest decision I've made

[stixgonzalez]

I have both and the only difference is the battery. The 8220 has slightly more ah.

[drewt]

Interestingly I have an 8220 for at least 5 years. Says 5k-30k rpm.

[Omar]

Amazing machine
Bought it recently

But also amazing watch
Seiko Sportura 11:08 😉

[johnycash]

I did get 18650 battery's quite powerfull and 3100mah and I change the battery s from sanyo 18650 charge comes to 6.5v I got they dead as the charger tough they fine even tho one thing the Dremel multy max was used twice didn't work charge the old n the new remove charge and I got 9.5v after I charge them full for the old battery's on my charger seperatley didn't help and the new replace the second battery and total came 12.8v as 3x25 amp new ones and the same size battery from 1500 mAh yo 3100 mAh twice n a bit on top and what sucks is it still dead does not start and that's sad any ideas ???

[jed]

You're a silly Billy! The front section unscrews and is molded to fit the pin vice section.
Unscrew the front piece, move it up and on to the vice section, hold the lock button in and . . . turn the thing. You don't need a spanner at all - I never use one.