Our kit includes three different replaceable brush heads and a long reach Drillbrush extension. This extension along with all of the all of the brushes feature quarter inch quick change connections on all pieces to make your job even easier. Quickly swap out and change all of your brushes with or without the included extension. These Ultra-Stiff brushes should cut your BBQ grill cleaning and scrubbing time in half (or more) compared to the rigorous effort involved in hand scrubbing. These spin brushes also do a better job in restoring, and then maintaining your grill, smoker, or oven grates. Ultra-Stiff bristle brushes are well suited to loose paint stripping, rust removal and graffiti erasing on stone or brick surfaces. Drill NOT included