Product review (5 stars): Worked great. To people having thee brush or sections come ...
Worked great.  To people having thee brush or sections come off even the packaging (if you bother to read it) says use tape at each section.  And the trick is you NEVER put the drill in reverse; never go counterclockwise.  ALWAYS spin clockwise going in and coming out.  Then you never can risk unscrewing the brush head or sections as they cannot possibly unscrew.  Those issues are user error and not product issues.