This tool is used when retipping your cue. This tool is used to sand your pool cue ferrule flush so that your pool cue tip will be on straight. It also serves the purpose of removing remnant glue from the ferrule, since tip cement doesn’t stick well to old dried glue. If you are wanting to do a top-notch pool cue repair, this is a step you don’t want to omit. This is an important step for a quality tip replacement.