During drilling, milling and sawing, large amounts of chips and dust particles occur which hamper production processes and lead to a loss in quality. If parts are stacked, particles are pressed into the surfaces and may damage them. During transport, particles oftentimes cause scratches. Wandres‘ Combi Sword Brushes provide for perfectly clean surfaces in industrial productions. The Combi Sword Brush Una U 121 with its micro filaments effectively removes particles and dust without using any cleaning agents. This machine is suitable for industrial 24/7 operations, has a low purchase price and provides for high performance cleaning results over long periods of time.