When your going to plumbing job you must have complete set of tools and carrying a plumber's tool belt, there are some useful things to consider putting inside it. Pipe cutters can automatically cut a copper pipe (or other types) with ease. They can often be used with just one hand free, so the other hand can be used to steady yourself or to hold the pipe steady while it's being cut. These usually aren't adjustable, so you'll need a set of them to handle a selection of pipe sizes. The telescopic tube cutter is a useful tool for plumbers to have in their tool belt.