Weiler® 3 in standard twist knot wire Wheel Brush provides a heavy duty brushing action with some flexibility for demanding deburring cleaning and surface preparation applications on somewhat irregular surfaces. Featuring Weiler® 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. 1/2 to 3/8 in arbor hole for use on bench/pedestal grinder, die grinder, right angle die grinder and straight grinders.