Circular Twist Knot Brush is widely used in oil, gas and water pipelines. The Knot Brush is used for cleaning up welded seams and specially developed to deal with root-pass and fillet welds. The Knot Brush is made using quality grade raw material which ensures optimum durability along with long lasting trouble free service. Circular Twist Knot Brush can be custom made in various shapes and sizes as per specific requirements.