Final answer:
A deburring tool or reamer is used to remove burrs after cutting a pipe, providing a smooth edge for safe handling and proper fitting.
Step-by-step explanation:
To cut out the burr left from the pipe cutter, you must use a deburring tool or reamer. This tool is specifically designed to remove the burrs, which are small bits of material that protrude from the edge of a cut pipe. The process is straightforward and requires inserting the deburring tool into the end of the pipe and turning it to shave off the unwanted materials, leaving a smooth edge that is safe for handling and ready for joining.