2 3/4 x 5/8-11 Knot Wire Cup Brush

2 3/4 x 5/8-11 Knot Wire Cup Brush is very popular for use with angle grinders. For heavy duty use, on preparing metal surfaces prior to painting. Removal of rust, slag weld scale or concrete waste. This knot cup brush has a wire diameter of .020 and max RPM of 14,000.