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I found this 110V vintage drill from a Japanese recycle shop. It is discarded because it is outdated and dangerous if used improperly. Even though it is outdated, its interior mechanic is still very good. For safety reasons, I have converted it from electric to battery powered by restructure the DC motor and mount new battery to drill body. The original armature is converted to 18V armature by rewinding new formula. The field is replaced by permanent magnet. Because of this video is a bit longer, you can watch it by section below: 00:22 Drill disassemble 00:44 Drill bit removal 02:39 Carbon brush removal 03:05 Power switch removal 03:39 Armature removal 03:51 Field removal 04:42 Drill chuck removal technique 06:48 Drill case cleaning 08:25 Armature disassemble 11:29 Commutator bar installation 11:55 Permanent magnet installation 14:35 Armature rewinding 18:16 Armature checking 18:47 Armature gluing 19:57 Armature balancing 24:00 Battery installation 24:53 Power switch installation 24:49 New keyless chuck installation 27:24 Final result 27:33 Wood drilling 28:00 Drill bit resharpe 29:02 Metal drilling 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
