This is the Mystic high pressure cleaning gun I just purchased from Bits&Bits Company a supplier of very small milling bits for CNC wax and other materials. Here is a link directly to the gun.

THIS IS NO TOY! It produces 1,650 PSI of pressure in a very fine micro stream. It WILL penetrate human skin or slice your eyeball open. If water jet CNC cutting rings a bell this is a micro version of that power. If you ever received a needleless injection, this can do the same thing. This works like the dental water picks but with very much more power.

The power is produced by a vibrating unit much like the handheld airless "buzz" paint sprayers. There is a small piston chamber that supplies the compression. I am sure the stream is a series of micro packets but it appears as a high pressure solid needle thin stream, not a wide spray pattern.

It was designed and manufactured by American Niagara for spot cleaning in the dry cleaning of fabric. It will spray cleaning fluid as well as plain water.

Using plain water it does an excellent job of cleaning a machined wax mold of the fine wax powder that accumulates in the tiny nooks and crevices. I also tried cleaning Corian(R) lithophanes of the fine milling dust and it works equally well in doing that.

It also rises a large cloud of vapor mist from the high pressure stream impacting a solid surface.

This tool should be operated with extreme caution and attention to what is going on. People especially children should not be permitted to closely observe. I also recommend the operator wear safety goggles.

With due precautions and a professional safety first attitude as an operator, it does an excellent job of cleaning small parts. I highly recommend this tool when properly operated.