That's so simple and cheap without buying an expensive engraving machine, you can make a picture or an inscription on glass, metal and other suitable material. 20mm diamond drill, the smaller the better.
How to easily and easily draw a picture or inscription on glass
That's so simple and cheap without buying an expensive engraving machine, you can make a picture or an inscription on glass, metal and other suitable material. 20mm diamond drill, the smaller the better.