— the name "mud cutter" is also often found. This term describes the features of the operation of such nozzles quite well: due to the powerful jet of water, they effectively break up and “cut off” even dense old dirt. Also, devices of this type do a good job with dirt that has accumulated in small cracks — for example, the joints of paving slabs. The design may include various tricks that further increase efficiency — for example, the ability to rotate the working part, due to which the jet looks like a spiral and provides a pulsating effect.
