Making jaw harp

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: Tools and materials that can be useful for this kind of work: angle grinder Benchtop Band Saw inverter welding machine Benchtop Drill Press Electronic FixedBase Router Variable Speed Bench Grinder Bench Belt and Disc Sander Jig Saw Engraver Reusable Half Face Cover with Safety Glasses HeatGun Professional Level IR NonContact Thermometer Digital Caliper T Measurements Ruler Mechanical Pencil 0. 5mm Carbon Copy Paper, Transfer Paper Protractor and Compass Set with Ruler Protective earmuffs Protective glasses