Water jetting which is also called hydro jetting is a technique that uses water to accomplish some tasks that may be hard to accomplish with any other means. This includes washing and unblocking some things by the use of water under very high speeds and can also be used to cut items when the water is put under pressure. Water is among the best cutting devices that man has ever discovered. Under very high pressure, it is used to cut metals and other materials including diamond which is the hardest element on the planet earth. The water jet machines are just adjusted according to the required pressure and anything that passes in front of the jet is cut into two.