Blasting gun works by passing a high pressure stream of air through a air jet past a hole (which is the media inlet) causing a large amount of vacuum which pulls the media up into the sandblasting gun and sends it out the blast nozzle. The media can consist of many different abrasives ,usually called media, such as glass bead, sand, aluminum oxide, black beauty, steel grit, steel shot, walnut shell and many other types of materials.
