Developed a new type of sandblasting. He called Peskomet. Your opinion is interesting.
The invention is made in the form of nozzles on the grinder. Ushm in this case used the most advanced, in my opinion, Metabo WE 19-180 QUICK RT. The nozzle consists of a throwing disc and a casing. Purpose of the thrower: accelerates the abrasive from zero to 105 meters per second, pumps air into the treatment zone to blow it. Purpose of the casing: protecting the operator from abrasive and holding the container with the abrasive in the desired location.
Video work sandbox.