The Osborn Knot Wire End Brush offers the most efficient usage for a wide variety of touch cleaning and maintenance applications. The brush can also be used on CNC equipment. The brush is ideal for spot cleaning, facing, removal of slag, rust and scale, cleaning pipe i.d., deburring and flash removal, cleaning of dies, molds and tooling, as well as pipeline cleaning. The brush is made with a rugged durable elastomer layer on the cup to help prevent accidental scratches or marring on the work surface during operation. As a safety precaution, the shank must be fully inserted into the chuck or collet and tightened securely.