3 Cordless Power Scrub Brushes for Tile, Grout, Shower, Tub, Sink Mineral Stains by Drillbrush 3 piece drill powered brushes all purpose starter kit. Three of our most popular and effective quality drill power brushes Quarter inch quick change shaft fits all cordless drills and impact drivers Many uses from bathroom and kitchen cleaning to automotive and workshop scrubbing tasks All Drillbrush Products have a 90 day no questions asked Money back Guarantee. If you are not completely satisfied with our product we will issue a full refund or ship out a replacement at the buyer's request. Cordless Drill NOT included.