The video shows the process of making an ancient musical instrument from a ruler and a brass tube.
For those who want to support the channel:
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Tools and materials that can be useful for this kind of work:
angle grinder
https://www.amazon.com/gp/product/B00...
Benchtop Band Saw
https://www.amazon.com/gp/product/B07...
inverter welding machine
https://www.amazon.com/gp/product/B08...
Benchtop Drill Press
https://www.amazon.com/gp/product/B08...
Electronic FixedBase Router
https://www.amazon.com/gp/product/B08...
Variable Speed Bench Grinder
https://www.amazon.com/gp/product/B01...
Bench Belt and Disc Sander
https://www.amazon.com/gp/product/B00...
Jig Saw
https://www.amazon.com/gp/product/B00...
Engraver
https://www.amazon.com/gp/product/B00...
Reusable Half Face Cover with Safety Glasses
https://www.amazon.com/gp/product/B08...
HeatGun
https://www.amazon.com/gp/product/B07...
Professional Level IR NonContact Thermometer
https://www.amazon.com/gp/product/B07...
Digital Caliper
https://www.amazon.com/gp/product/B00...
T Measurements Ruler
https://www.amazon.com/gp/product/B07...
Mechanical Pencil 0.5mm
https://www.amazon.com/gp/product/B08...
Carbon Copy Paper, Transfer Paper
https://www.amazon.com/gp/product/B07...
Protractor and Compass Set with Ruler
https://www.amazon.com/gp/product/B07...
Protective earmuffs
https://www.amazon.com/gp/product/B00...
Protective glasses
https://www.amazon.com/gp/product/B07...
https://www.amazon.com/gp/product/B00...