Almost everything!

Water compressed under pressure of 910 - 5100 atmospheres exits with pressure from a hole with a diameter of 0.20 - 0.42 mm. The average speed of a stream of water exceeds the speed of sound: 390 - 1200 m / s. Water cutting: plastics, foams, frozen foods. If you mix water with a special abrasive - quartz, pomegranate sand, corundum grains - then you can cut absolutely everything: non-ferrous and black metals, natural and artificial stones, assembled materials, granite, glass.