KNOT WIRE WHEELS WITH NUT Knot wire wheels with a threaded nut are intended for use primarily on small and large right angle grinders. Featuring Weiler's individual knot hole construction, these radial brushes are available in heat-treated steel, Type 302 stainless steel and bronze wire for use in a wide variety of applications. Applications such as Removing powder-coating, epoxy-based paints, and rubberized coatings, Weld preparation and cleaning, Cleaning scale and heavy corrosion, Removing heavy burrs from large pieces after cutting. Industrial Grade - Engineered and manufactured to maximize performance and minimize operating costs in the most demanding surface conditioning applications. The use of superior construction, the highest quality materials and the most stringent manufacturing processes deliver the lowest cost-of-use and most consistent performance in heavy production environments.