Complete restoration of a real military artifact-an explosion-proof lantern from a Soviet military bunker. Presumably 1970.
They were used as military overhead or underground facilities, and at hazardous production facilities.
The case is completely metal. Special borosilicate glass withstands a temperature range from-80ºC to 525ºC and has a high hardness.
Now and in future releases, I will post links to the most convenient and reliable tools that I use in each particular video. I've spent a lot of time choosing the best offers and I want to make it easier for you if you want one of them.
Good luck to all!

Tools that I use most often:
1. Multifunctional machine with flexible drive:
https://s.click.aliexpress.com/e/_eO6ibA
2. 220 or 110 volt Soldering station:
https://s.click.aliexpress.com/e/_ePOcK8
3. Engraver with flexible shaft. Large set
https://s.click.aliexpress.com/e/_eNqWAS
4. Battery powered impact screwdriver with a monstrous 300nm torque:
https://s.click.aliexpress.com/e/_eKCf8Q
or this one
https://s.click.aliexpress.com/e/_eNSxTu