IVY Classic Industries is dedicated to producing a comprehensive, quality line of power tool accessories and hand tools. IVY Classic Stainless Steel Knot Wire Cup Brushes are designed for heavy duty removing of rust, dirt, scale, paint or welds from flat surfaces. The brushes are precision balanced to eliminate vibration and are constructed out of corrosion resistant stainless steel that does not leave deposits that cause rust. The threaded arbor on these brushes is intended for use on angle grinders.