PFERD 4" Knot Wire Wheel

Stringer bead knot wheel features tightly twisted knots (3/16" face width) for low-flex, high-impact brushing. Designed for root and hot pass weld cleaning in pipe joining applications, these brushes are also ideal for use where a narrow face and very aggressive brushing action is desired. 4" diameter brush with .020 carbon steel wire, and 5/8-11 threaded hub.