The Anchor Brand Knot Wire Cup Brush, measuring 3 inches in diameter with a 5/8-11 arbor, is constructed from .012-inch stainless steel for durability and corrosion resistance. Its flexible knot wire design ensures effective brushing action, making it ideal for general-purpose cleaning and rough surface preparation. Equipped with a threaded nut, this brush guarantees smooth and efficient performance when used with angle grinders, enabling rapid debris removal while maintaining cost-effective operation for professional-grade results.