A water jet cutter is an industrial, CNC machine used to cut metal, wood, glass, rubber, and other materials. Unlike other cutting machinery, which can generate heat and friction during the cutting process, a CNC water jet cutting machine uses a cold-cutting process that employs a stream of high-pressurized water and garnet to cut through materials. As a result, water jet cutting eliminates the heat-affected zones that can be caused by plasma or laser jet cutting, creating a cleaner and more durable cut. Custom water jet cutting also allows for the use of precise, non-continuous cuts that result in the optimal use of materials, and create a near-machine like cut finish for projects both simple and complex.