Weiler 15″ Extra High Density Standard Twist Knot Wire Wheel Brush is engineered for maximum performance in production applications. 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. 2″ arbor hole for use on automated equipment such as dedicated gear deburring machines. Engineered for maximum performance in production applications. For use on automated equipment such as dedicated gear deburring machines. Knot wire wheels with an arbor hole are intended for use on straight grinders and stationary machines such as bench or pedestal grinders and buffing lathes. 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. .