Weiler® Wolverine® Stringer Bead Wheel - 4" Steel .020 with 5/8-11 Hub 36218Genuine Weiler® Wolverine® four inch stringer bead wheel features .020 steel twist wire and 5/8"-11 hub. #36218 is excellent for cleaning root and hot passes and reaching into corners.This Weiler 32 Knot wheel features "trimmed" sharp knot ends and 5/8-11 hub for use with a right angle grinder. Wolverine products maintain Weiler's exacting standards while serving as a cost-effective option for less demanding applications.Features Narrow face brushes are suitable for cleaning root and hot passes and reaching into corners Engineered for cost effective use in less demanding applications Using similar product construction and to the same exacting standards as other Weiler weld cleaning brushes For use with right angle grinder Best on steelSpecs Diameter - 4 inch Wire Size - .020 Arbor - 5/8" - 11 UNC RPM - 20,000