Root cutter: With chains or water cutter
A root cutter is a rotating nozzle with mounted chains used to remove roots in a sewer line. The chains can also be designed with inserts so that they become more efficient and can handle more stubborn roots. Water cutting nozzles work by means of water that is put under high pressure. Like root cutters, they can be used to remove roots, and they are also effective in removing deposits and grease in the pipes.