The Drillbrush Industrial line of professional grade cleaning tools are built to meet or exceed contractor standards. The 3 brush 7-inch kit was designed with the professional in mind to get a variety of scrubbing tasks done faster and better. Popular with general contractors, fabricators, painters, marinas, welders, auto re-conditioners, masons, bricklayers, cabinet makers, and with all types of commercial cleaners. Institution, Facility, and Hotel cleaning contractors can benefit from the greatly increased speed compared to hand scrubbing. ⢠The Soft White brush is ideal for cleaning and scrubbing carpet, wood, glass, leather, facility seating, and furniture. ⢠The Medium Yellow brush is for cleaning and scrubbing Bathrooms, Tile, Tubs, Shower, Porcelain, and Flooring. ⢠The Ultra Stiff Black brush replaces traditional wire brushes and is suited to cleaning and scrubbing Grates, Stone, Grills, Furnaces, and other industrial applications. Fits these and other 7in / 9in Variable Speed Polisher machines with spindle thread 5/8 x 11: ⢠DEWALT DWP849X 12 ⢠Milwaukee 5540 ⢠Milwaukee 2738-22 M18 FUEL 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.