12-piece drill brush attachment set includes: 4 different medium-strength nylon brushes (12.7 cm original bevel brush, 12.7 cm yellow medium brush, 10.2 cm yellow medium-sized brush and 5.1 cm yellow soft brush) and 6 Pieces of 10.2 cm scouring pads, 10.2 cm drill carrier plate and a drill extension. Drill not included.^ All Purpose Drill Brush Set: Drill Brush Power Scrubber Kit allows you to tackle any cleaning application, perfect for bathrooms, bathtubs, sinks, shower door rails, tiles, grout, home, car, kitchen. In addition, abrasive pads can be used to remove mineral deposits from cookware and kitchen sinks.^ Scouring pads firmly attached: All scouring pads are provided with a layer of fleece material so that they can be firmly attached with the Velcro fastener and do not loosen when in use.^Wide compatibility: Perfect fit for both cord and cordless drills. 1/4 inch hex steel shaft can hold any electric drill brush firmly and will not fall off, safe to use and will not damage your drill bit. Plus, the extended drill bit is easy to install and can help you clean hard-to-reach areas.