“I don’t know what units I’m measuring but it’s a direct comparison” Pretty much captures of the spirit of engineering.

I came here with the state of mind that I do with any review video but was completely caught off guard by the fantastic gem this is. This guy has one of the most entertaining personalities! Impressive intellect. The accent paired with the delivery of the jokes cracked me up! Bravo sir, bravo.

Just stumbled upon your channel, Marco. Your 1.3kW precision screwdriver delicately screwing the self-tapper into place, was so impressive, how could I not subscribe.

so much videos from you lately, amazing

Ha, that intro had me cracking up. Was searching to compare the two models. Glad I found the channel.

If I had zero interest in the subjects of your videos, I would still be subscribed and still enjoy ever moment of them.

now THAT'S what I call a review. Not thoose cookie-cutter "reviews" where people are merely advertising the product. Props bro

Your German accent is delightful! It confers your videos 50% fun and 50% seriousness/precision, it's very funny! Quality

What, two videos of my favourite german electronics enthusiast? I must be dreaming!

Ha! This vid made my day! Love the drill press -- thanks for the pointer to thingiverse -- I might have to printify that.

Dude that bearing test was.......speechless! Awesome is an understatement! Pretty chill, man, pretty chill

I would just like to clarify that the new version of the ES120 has the updated bearings. The only difference is the gear ratio. The new version comes in packaging like the es121 instead of the older cardboard box.

Wow 625 torque units! Dang! I don’t know if I could settle for a measly 500 torque units.

two videos in one day?! im hyperventilating in bliss :O

100 Dollar?! I have to find some new projects with a lot of screws to justify a purchase like this.

the MOST ADORABLE DRILL PRESS, I want fifty

Excellent and very entertaining analysis. Thank you.

That sense of humor! 😂 Subscribed.

Good to see you are getting a few products to review. They come across fair.

Great in-depth review!!! Love the Bearing test.

Getting so much content lately. Its great.

Its not an upgrade, just a different gearbox ratio. I've emailed the maufcturer asking what else the so called upgrade is.., here's there reply... Hi: ES121 is not upgraded of the ES120, I don't understand why the agent said it was "upgrades." ES120 and ES121 are different from the gearbox, ES121 is 1:64, and ES120 is 1:144. The other is the same, the motor speed is 25000rpm. Ive now got a es120 on the way :-)

Congrats on 30,000 subs!!

Love ur vids! Just a tip, u cannot use a load cell like the one in the video for measuring the torque, u r measuring kind of noise and structure deformation but not well correlated with the torque. U should put a leverage on the drill and let it press down the load cell, then multiple the force read for the leverage length. The load cell is engineered to filter the torque

I really enjoyed the side tracks

Hey marco! i would love to see a tour of your shop, and some tips for what lab machines to buy/build as a begginer

Two videos in one day hot damn

Das Ding ist echt geil! Danke für die Empfehlung! :-) Wenn man das per USB an den Computer anschließt (in meinem Falle an einen Mac), dann wird ein USB-Laufwerk mit 2,1 MByte gemounted. Vermutlich ist das nur für Firmware-Updates. Schade, dass das nicht größer gemacht wurde. Man hätte dort Schaltpläne rein legen können.

I think this product is featured in the "Mission Implausible | M1 chip | iPad Pro | Apple" video!

I love your comparisons

I like your review

Seeing as you did not realise, I designed this specifically for use with mobile phones and tablets - nothing other. More than adequate torque to handle the needs of a daily repairman. Not designed for anything further such as a laptop

Hey Marco, Just received the es121 today from good ole banggood. I charged it up, and it seems pretty weak. It couldn't unscrew a inexpensive plastic led light even after manual loosening. Am I doing something wrong? I bought this after watching your awesome video ;) Thanks for your help!

I like your nice and small 3d printed drilling machine

You make Interesting item even more interesting

What? I just finished watching your microscope video. Great :D

Had to get One Just Soo Cool...

such a funny and informative review!!!

Anyone else noticed that these are no longer available?

Gibt es einen anständigen Nachfolger, den du kennst und schon mal in der Hand hattest? Dieses Modell scheint nicht mehr im Verkauf zu sein.

Brilliant video!

How about a torque test based on the basic definition of torque: Screwdriver directly turns a lightweight arm of known length with a movable weight. Measure ability to lift arm with by turning screwdriver, and you'll have a good measurement in kgm. Multiply by local gravity for Nm.

That's it! I'm buying it!

Could you do an update with the ES126? Love your vids and would be interested in buying one :)

Спасибо! Интересные у вас ролики.

have to know where you got the press and the drill bits, those would be very handy to have...

I have this driver but the battery is garbage now. Any good quality replacements? The usual AliExpress ones probably won't be a worthwhile replacement

Can you please give more details on the load cell contraption?

okay maybe a little bit, subscribed.

Great video.

You have connected the load cell wrong. The screw should be perpendicular to the drilling axis of the two large cavities. That is the direction in which load is designed to flex. There is a sticker on the load cell which indicates the direction/axis in which force should be applied.

Hi Marco. I know this is a fairly old video, but I wanted to pick your brain on this screwdriver. What type of grease would be best for the planetary gear assembly? My ES121 had an issue where the gearbox was slightly binding causing the software to think the screwdriver reached maximum torque and would shut it off after a revolution or two completely unloaded.

Another of those gadgets I'd love to have, but I just can't justify spending the money for it to myself.

Your talking accent is very cool!

But does it come with an earwax removal accessory?

Good stuff!

0:59 BUT CAN IT DO THIS?! :P

Where did you get the drill bit for this?? I got one of these from a pallet store for $20 and I would love to have a drill bit for it for PCBs.

I guess customs offices around Europe are still dealing with the New Years Eve gifts-from-China rush :) Good review, not convinced I need one. Better save the pennies for a signal generator

0:52 .. why is there no price and warehouse ?

I received the ES121 today. The battery was completely dead when I got it and it didn't come with the portable pouch as in the description. Now when driving and tightening a half dozen screws or so on any setting it just quits working. I can get it to work again if I plug the USB in. Going to contact seller to exchange it or get a refund. I wonder if all ES121 have the same problem or is it just a random thing.

"I don't know what units I'm measuring in..."

But is the casement made of a prefambulated amulite?

".. ok maybe a little bit" LOL:)

more videos please

I appeal to the author of the review. Is it possible to use this device for threading (1-2mm)? Is it possible to control the forward stroke and reverse so that the stuck tap is not broken.

Is ES15 a successor to this screwdriver?

Both controller boards have ES 120 on them! So, they are the same, surely?

Growmau5 gave up the link, I’m subbed up. Keep on keeping on.

Where did you get the drill bit?

Hopefully they upgrade the TS100 to have a shorter exposed heating element

Instant buy if it's brushless.

That thing's built like a swiss watch.

You have ways of making it Torque ;) Sorry I'll get my coat

300 mAH sure isn't alot of juice , I wonder if the battery can be replaced with a higher capacity one, I'll have to see what is available for that size

Hi Marco The ES120/121 are advertised as open source / creative commons. But I'm unable to find the source files for this project(?) I would be very interested in the firmware and the schematics since I want to try different control methods for the ES121. Thanks

but can it power my skateboard?

Besides this, is there also improvement on the battery life?

A+ but the torque test needs to be supported in a jig. As it stands, your assembly is transfering torque from the screw, to your metalic unit + strain gauge load cell, and then continuing to transfer torque to your arm (that is, your human arm, not a torque arm ;)). A substantial amount of the motors generated torque is transfering into the pivot of your assembly/into your body. Placed in a vice, you can do multiple runs against the same torque reaction, limiting the variance. (Alternatively, if you want to have multiple runs gapped between time, a 50 kilogram weight placed on your assembly should be repeatable between test setups, (which is not the case for clamping in a vice, unless of course you're torquing the lead screw of the vice itself down with a torque wrench.)) Also, this goes without saying but there should be an equal amount of pre-load for each test. (An easy way to do this is: take a piece of .001mm feeler gauge (or shim stock of a hardened metal), insert the feeler gauge as shim between the screw and the assembly, then screw down to 'hand tight'. Mark both the screw and the assembly. Remove the stock. Each time you set up the rig, the screw and assembly should line up to the demarcated points, so your driver is consistently working with the same (negative) preload, so the inertial force variance is limited).

But is it sonic?

Are you going to be at any event soon? I wanna meet you!

Any tips for getting this in the EU (since the customs costs are high)? I didn't find any EU listings on Aliexpress, for example :-) I want this!!

Any idiot (even I) could take one of these apart.... but taking it apart so that it goes back together?.... that takes a little more skill and effort. Great review!

Not enough brushless brutality.

Unfortunately after almost one year and very very litlle use i have two screwdrivers es 121 that stop function.

Hab den ES121 jetzt über ein Jahr. Als er geliefert wurde, hat er 3 Tage funktioniert, dann blieb des Display Dunkel. Bangood schickte mir nen neuen. Vor einer Woche des gleiche Problem. zieht 600mAh, Display geht net an. tot. fand aber auch nirgens nen Schaltplan im Netz. Funktioniert deiner noch oder haste auch Probleme? LG Marc

de blue blushless blutality beast

You can make anything interesting!

It would be cool to make it brushless.

Could you compare it to Xiaomi WOWSTICK?

Do you have a good source for 4mm hexagon bits that would fit this. Would be great to find good quality allen bit and other special models for phone repair and other

4:00 doesn't seen to be straight. Plastic adapter for drill is your adition?

hallo marco schraubendreher kannst du ein geschenk schicken danke

How much for the beast?! :D

They sent me a left handed screwdriver

make a blue brushless brutality beast mini bosch chainsaw

Please show us how to build the blue brushless brutality beast? Could you be so nice?

Kilovolt?? kV? not kilowatts???

But with no laser how am I suppose to know what wall im making a hole in

Can I buy the upgrade parts for my ES120?