Wheel brushes UZ The brushes of the UZ series having diameters from 115 to 178 are 6 mm thick and have a higher number of knots. They are designed for brushing the first welding, but are also suitable for the removal of slugs inside every type of crack, no matter how small. The chemical and mechanical characteristics of the iron wire, along with the outstanding manufacturing procedures offer the users both high results for aggressiveness and durability.