Vintage Electric Hammer Drill Restoration and Conversion from 100V to 18V

This is a vintage electric hammer drill from Japan. Its power is only 330W.
I tried it, but it did not work because it broke the internal wiring. Fortunately, the wire did not touch the body, otherwise I would have been shocked. For safety, including modernization, I decided to convert this tool from electric to battery hammer drill powered by 18V Milwaukee battery.
You can watch this video by part
00:05 build alternative Milwaukee 18V battery
05:55 power tool disassembly
06:07 stuck chuck removal trick
08:57 field removal trick
09:34 label removal trick
10:22 chuck removal trick
12:22 rebuild armature structure
17:29 how to rewind the armature
20:42 how to check short circuit between the commutator bars and the body
20:49 how to check the armature commutator bars checking
21:13 how to glue the armature
21:29 how to balance the armature
22:38 install permanent magnet
23:42 mount the battery to the drill house
24:47 paint new color
25:27 rusty chuck restoration
26:36 assembly time
30:46 testing
Li-ion MILWAUKEE 9.0 Ah 20V 162Wh
- Voltage 18V ~ 20V
- Capacity 9Ah
- 15 cell of lithium-Ion 18650
You can find the battery case at t.ly/0R8-
Lithium-ion battery cell
- Brand model: LG INR18650HG2
- Standard capacity: 2800- 3000mAh
- Rated voltage: 3.6V
- Charging voltage: 4.2±0.05V
- Maximum continuous discharge current: 20A
- Discharge cut-off voltage: 2.5V
- Weight: Max.47.0g
- Size: Max.18.2×65.2 mm
- Charge and discharge times: 500 times
New DC 18V motor
- 12 commutator bars
- 12 stuck teeth armature
- 1.1 mm coil wire
- 10 times covers 4 stuck teeth
I hope you find this video useful and enjoy it!
Furthermore, I am happy to receive feedback, suggestions to improve myself.
!!! I'm sorry for the mistake if I did in this video !!!
Thank you very much for choosing to watch my video!
Have a nice day
Gear Show

[@MetalRestorationBho]

This was excellent. You really went all out. Love the result. 🥰🥰🥰

[@gear_show]

Thank you so much 🤗

[@user-zk6bs1hb2r]

I`m one of your biggest fans! Every video is a masterpiece. Really grateful you`ve inspired me to do a lot of my own projects.

[@gear_show]

Thank you for away come to this channel! I'm glad you like those contents.

[@plageran]

wish i had the patience

[@beaverone3837]

The proper use for a 50mm socket 😂

[@nsbhagwat]

Gear Show rewinding the armature, thats more like it. Loved it.

[@gear_show]

I'm glad you love it, thank you!

[@mcrwy]

​@@gear_show But when the engine is modified, it becomes weaker than it was, so it is preferable not to modify it and make it as it was. There are many repairmen who do not do this for this reason

[@jonxchannel]

NICE BATTERY KIT I LIKE IT A LOT

[@gear_show]

Thank you!

[@Gorphee]

It looks like the spot labeled '12v' on the circuit board wasn't soldered down like the rest. You can see it at 3:47

[@Pushpin06]

also didnt add a grommet where the power cables go into the (metal) body

[@russelblackwell6041]

always one to pick a fault

[@juanpena9386]

People who spot potential problems are much better at their job than those that just sit in awe.

[@yeagerxp]

Very good restoration 👍👍👍Thank you for sharing. Be safe🇨🇦

[@gear_show]

My pleasure, thank you!

[@larrykelly2838]

I really enjoy your conversions.

[@gear_show]

Glad you like them!

[@sohailrabani]

nice build

[@gear_show]

Thanks

[@pareshgajjar6601]

Excellent work with useful tools and techniques.

[@nathkrupa3463]

What a wonderful restoration and you are very hard worker thanks for the sharing this video and nice restoration good work sir 👍👍.

[@PhG1961]

Great craftsmenship !

[@gear_show]

Thank you!

[@EDUARDOGONZALEZ-lq7zb]

THANKS GREAT JOB

[@gear_show]

You're welcome, thank you!

[@hrishikeshjoshi8074]

I was feeling restless for some reasons this restoration video calm me down

[@SC.243k]

Awesome… very beautiful 👌 Fully watched 👍👍👍👍👍

[@gear_show]

Thank you so much 😊

[@arturlend2297]

Świetna robota 👏👍😎

[@Kamidashi77]

14:30. When I saw these armature rings, I immediately remembered how we used to throw shaped transformer plates in childhood. They were in the form of the Russian letter "Ш", or "E". 😄

[@gear_show]

Oh, you have a good childhood memories. Thank you for sharing!

[@Kamidashi77]

@@gear_show Thank you for amazing work and video montage! 🙂

[@alikasem8058]

Wow that amazing job and you have a great experience too

[@gear_show]

Thank you!

[@husseinali-km3ug]

Good work, I think adding the left and right direction key is necessary for this work

[@FranciscoRoura]

I love this, the voltage convertion was a master piece, It would be nicer a more elaborated adaptation to the battery and a cover for the exposed wires, consider 3d printing 👌

[@gear_show]

Okay, thank you for sharing! I'm glad you love this content.

[@pindrixsechon6311]

A masterpiece, in a masterclass, by the master ! Hey dude, you rock !!!!

[@7mdaemam97]

نبويو ت

[@gear_show]

Thank you! I'm glad you like it.

[@boueng]

Nice job, good content! 👍🏻Thanks! 🌹

[@gear_show]

Thank you very much!

[@garyjones2582]

Very impressive G.S... Nice video...

[@gear_show]

Thank you!

[@user-kt2hb8xr3p]

Great job, thank you brother. You are so talented

[@gear_show]

I appreciate that!

[@lopa2000]

Another great video and i like the sound! 👍

[@uccuong9309]

Oh man! I love your videos

[@dumalaanjaneyulu4696]

You are genius to make these kind of things sir❤️❤️❤️

[@gear_show]

Thank you so much!

[@re-fix9678]

very good👍👍

[@gear_show]

Thank you!

[@seagullag]

Beautiful job.

[@gear_show]

Thank you so much 😀

[@user-rj2pm8nu5t]

Да. Хорошая и серьёзная проделана работа. Удачи вам. Ну и конечно лайк

[@vichetdragoncars3186]

I’m your fan. Excellent job

[@gear_show]

Thank you my fan :)

[@dendyfebianto4157]

good job... 👍👍👍

[@gear_show]

Thanks

[@RestorationAustralia]

Well done. 👍

[@gear_show]

Thank you! 👍

[@taufiksaputra7958]

どうもありがとうございました、私はあなたのコンテンツにとても満足しています。

[@gear_show]

どういたしまして！ あなたがこのコンテンツを生きてくれてとてもうれしいです。

[@luisbarrioszavaleta9779]

excelentes videos compa bendiciones , sigue asi dando videos chingones , saludo desde martines de la torre ; veracruz , mexico.

[@janu5797]

The japan script says it's makita, i guess that's the brand

[@gear_show]

Okay, thank you for sharing

[@ahmetemindeveli8521]

Türkiye den selamlar 🇹🇷🇹🇷

[@ramonesteban5473]

Fantástico trabajo ! Gracias por compartir.

[@gear_show]

¡Denada gracias!

[@algeriemonpays5828]

really beautiful great job thank you

[@gear_show]

Thank you! 😊

[@thomastechnical2075]

Thanks for change Table sheet Gear show Very Excellent work Brother

[@gear_show]

My pleasure, I'm glad you like it.

[@strokeman67poison44]

You are so lucky I do not have the brain capacity you’re good with electrical stuff WOW

[@gear_show]

Thank you so much!

[@MeilyFoodie]

❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️ Amazing video ❤️

[@gear_show]

You are so kind ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️

[@valmirramos4195]

Trabalho de mestre! Gratidão Gear Show!

[@gear_show]

Muito obrigado!

[@Nick.Tran7777]

Nice !

[@brifpot]

allways good thanks

[@gear_show]

Always welcome

[@mostafaallam2552]

very good

[@gear_show]

Thanks

[@vinodpatil495]

Nice 😊

[@gear_show]

Thanks

[@andrewjarvis5814]

cool project but idk if its too fit for masonry. hammer drills can do it but its slow compared to a sds rotary hammer

[@gear_show]

Because the old mechanic structure.

[@smmcreative]

It was really great

[@gear_show]

Thank you!

[@antrepenor]

Nice, looks SF, like a fallout experimental weapon :)

[@gear_show]

Yes, thank you!

[@muhammadrais4889]

Nice job 👍🇮🇩🙏

[@user-ru5xq3er6s]

Щетки у моторчика нужно было поменять на медно-графитовые, с низким сопротивлением, которые расчитаны на большой ток. Спасибо за контент!

[@gear_show]

Хорошо, спасибо за советы!

[@octavianraducanu4048]

Îmi place foarte mult.

[@DamianosJDM]

U forgot to solder the 12v signal on the battery module at 3:25 . Nice videos!

[@gear_show]

Yes, thank you for the feedback!

[@androidmandroid7647]

Crazy!!

[@George_Borman]

Лови плюс! Я бы оставил 220. Эта серебристая краска быстро сотрётся. Инструмент сделан на века !

[@gear_show]

Спасибо, что поделились!

[@user-vw2hv2qb6o]

نسأل الله العظيم ان ينصر اخواننا في فلسطين

[@juancarlosruizlopez6764]

Me encanta tu trabajo y conocimiento.....siempre estoy pendiente de tu videos.....gracias

[@gear_show]

Me alegra que te guste este contenido.

[@AnsonBelvin]

The motor laminations will produce eddy currents because each lamination wasn't isolated electrically with varnish etc. But overall great work!

[@user-ef9vj6gd6t]

nice

[@andreasmoll_0924]

Please a Quick-release chuck and a brushless motor

[@billykulim5202]

so scary powertools with full metal expose like that with no rubber coating, and its electric AC to, you bassicaly play with your life using a tools like this, convert it to dc will be safer from electric shock

[@TheGodsrighthandman]

Other than perhaps a bit better cable management from the handle to the battery, you've done an excellent job. I'd have sleeved the wires into one flex, grommeted the hole they emerge from or, indeed, routed them out of the smaller hole @ 28:38 and blanked off the large aperture at the bottom. Still, definitely a 9.5/10.

[@gear_show]

I'm so glade with your feedback, thank you for sharing!

[@user-wp8bg9hn8w]

That's a very nice

[@gear_show]

Thank you!

[@user-wt3rx1do8c]

أحسنت يا مبدع استمر

[@gear_show]

شكرًا لك! أنا سعيد لأنك أحببته.

[@leandrosilvaleallima1991]

Parabéns pelo vídeo. Faz um vídeo explicando com Faz a ligação da bateria 🔋

[@Saber_Matrix]

Dope💯

[@gear_show]

Really..

[@Saber_Matrix]

@@gear_show What do you mean by "Really.." ?

[@abdel4979]

bravo

[@gear_show]

Thank you!

[@magnoluciodomingos1331]

Bravo 🤠🏆🇧🇷🇧🇷👏✍️

[@gear_show]

Thanks

[@vicdun12.21]

Винтажный киберпанк)))

[@gear_show]

Да спасибо!

[@jhkavkazmaxmud4998]

Super

[@valera050883]

👍👏 отлично

[@blastingweevil2968]

nice but you should not use plastic to "Insulate" the windings.. you should use insulating paper that is designed for it you run the risk of it heating up and melting and sticking causing a short with prolonged use.

[@gear_show]

Yes, you're right. Thank you so much for sharing!

[@omidkarimi-fr3fx]

ممنون وخداوند خیرتون بده

[@tioja92]

Wow! Your job is amazing.... I need to know... how did you remove the rust and the grease?! that must be difficult

[@tassottia]

hero!

[@gear_show]

:D

[@ALEX-ki9fq]

Лютый колхоз)😄👍

[@davidepiccini9254]

Wow

[@klimchugunkin8244]

жидкое крепление аккумулятора!! Можно было в алюминиевом корпусе сделать

[@hsinus666]

Great job as usual but the motor seems to be not powerful enough for this drill?

[@gear_show]

Yes, it is less power than original.

[@tidleso5637]

Some math to why you take the winding you do would be very helpful to redo this oneself. Otherwise great video!

[@m600205]

敎學級的視頻！

[@gear_show]

你学到了新知识吗？

[@girthquake1413]

Have you ever done the math to see how much more powerful your mods have made tools like this one?

[@gear_show]

When I was studying physics, I knew how to calculate its force.

[@BlackKnight-ch4en]

How will you stop the drill for draining the battery cells all the way?

[@ruyani8511]

👍👍👍 mantap

[@gear_show]

Thanks

[@gatrongdeptraivlog7750]

- Đúng chế luôn 🤪🤪🤪

[@gear_show]

Thanks

[@ArifKamaruzaman]

You're supposed to melt that plastic pole. The one that came through nickle plate. It's there to lock the metal in place. I used low temperature solder with old tips.

[@gear_show]

Okay, thank for the tips

[@boueng]

What is the name of the company that made this drill?

[@cabinvibeetsystore9094]

New sub , liked ❤️👍👍🙏✌️

[@gear_show]

Thanks for the sub

[@jgprojects912]

Use dc switch or 30a relay with normal switch Switch u are using will not handle >2 amps current because it is made only for AC current load

[@gear_show]

Okay, thank you for sharing!

[@v.g.f]

راقي

[@phuocnguyen-mw5bq]

Có mô tơ 18v đc sao anh ko thây, mà quấn như vậy thì làm khó em quá.hehe theo dõi anh đã lâu

[@repair_and_restoration]

Mo to 18v loại mạnh nhất là 895 cug ko mạnh bằng mo to quấn lại này nên họ quấn vẫn hơn .

[@pauloteodoro2415]

Olá, dar pra modificar a bobina de campo também, pra não colocar imãs?

[@selimkurkcu]

👋

[@gear_show]

Thanks sir!

[@truc_thang_mini]

giống ở Việt Nam quá

[@plageran]

does the additional turns give you more torque or higher voltage range?

[@sammyd7996]

I like to disassemble things as well but I never put them back since I don't remember what part goes where 🤣🤣

[@gear_show]

After you watch my videos, you will can do it

[@ArdianF4]

Interesting project. But was it worth? I mean, there is really lot of work you did. Anyway when you testing drill on different materials like wood there is no question. When you drill concrete, I see a low performance in this case. And there is not showing drilling metal plates. Good job anyway. Good luck!

[@gear_show]

The battery can be used with the original power tool, so It can't count into this project cost. I do this project for learning and showing. The vintage mechanic structure is designed not so good, that why it performs not so well. Anyway thank you!

[@Homeworkshop_Evgeniy]

А сразу нельзя взять готовый аккумулятор??

[@gear_show]

Это искусство создания видео.

[@nelchan2421]

1:50 use big head pen

[@DennyMK007]

The battery looks like a sore thumb. Other than that, nice conversation/restoration.