Complete set for grinding and polishing dirty wood objects or removing paint due to the clever combination of brushes round brushes and pot brushes working on larger surfaces as well as difficult to reach places is no problem the brush holder can be exchanged more quickly by means of the hexagonal socket with the sds adapter the brushes can also be used with an impact drill if a higher speed is required includes scrubbing brush 22 mm diameter round brush 75 mm diameter pot brush