Operating pressure	380 MPa
Stand-off distance	2 mm
Nozzle (orifice) diameter	0.25 mm
Focusing tube diameter	1.02 mm
Focusing tube length	76.2 mm
Used liquid	water
Used abrasive	Australian garnet
Abrasive sizing	80 mesh (0.25 mm) *
Abrasive mass flow rate	0.25 kg·min−1
* Comment: Average grain size of Australian garnet 80 mesh has been measured in laboratories at the VSB—Technical University of Ostrava several times on different measuring devices for particle size anal-yses. The average value 0.25 mm has been determined and, therefore, it is used now in our calculations, although some conversion tables present lower values (often below 0.2 mm).