Drill old pipe stubs out of fittings when replacing plastic pipe. These extractors let you reuse difficult-to-remove fittings, such as those in concrete floors, and install new pipe. Attach them to a power drill. Use the washer on the tip of these extractors to guide them down the center of pipe stubs. The cutter is sized to match the ID of your pipe fitting, so the blades remove all of the pipe and none of the fitting. The blades are angled to propel chips backwards so you don’t have to fish them out.