garnet sand can be used as abrasive in the ultra-high pressure water jet cutting equipment. Because of its wide range of applications and easy operation, water jet cutting is the fastest developing main machine tool processing technology in the world. When water is pressurized to 40000 psi (or more) and passed through a small opening, it can cut a variety of soft materials, including food, paper, paper diapers, rubber and foam. When a small amount of garnet sand is mixed with the water arrow, the sand added water arrow can actually cut any hard material, including metal, composite, stone and glass.