What is a common tool used to cut PVC pipe?

A pipe cutter is specifically designed for efficiently and cleanly cutting PVC pipe. This tool features a circular blade that provides a precise cut, which is crucial in ensuring a proper seal during pipe fittings and connections in irrigation systems. Using a pipe cutter minimizes the risk of damaging the pipe or creating debris that can affect the integrity of the irrigation system.

While other tools such as a hacksaw can also be used for cutting PVC, they may produce more rough edges or shavings, which can complicate connections and lead to leaks. A pipe wrench, on the other hand, is not designed for cutting but rather for gripping and turning pipes, and a mortising machine has completely different applications related to woodworking and is not relevant to pipe cutting at all.

Thus, the pipe cutter stands out as the most effective and appropriate tool for cutting PVC pipe in irrigation work.