suurte valandite, sepiste ja stantsiste pinna jugapuhastus abrasiivosakesi kiirendava õhujoaga (vt jugapuhastus; vrd hüdropuhastus; tsentrifugaalpuhastus), a special technique where compressed air forms pneumatic acceleration of abrasive media through the nozzle to the surface; used to clean castings and forgings (see: blast cleaning; compare: hydroblasting; centrifugal wheel blasting)