This brush is tough. I've used it to clean concrete before plastering it. It does a job that would take ten times as long with a manual wire brush. The brush is strong and durable and provides excellent cleaning for many hours. NOTE: The image on Amazon is a bit confusing as it shows three brushes that appear to be different; The one I received was similar to the one in the top right corner, with lots of stranded wires, and was of medium length.