United Abrasives- SAIT 06445 4" x .020 x 5/8-11 Arbor Stainless Bristle Stringer Bead Knot & Crimped Style Angle Grinder Wire Wheel For use on small grinders Stringer bead twist excellent for welds, flux removal and where a narrow work face is required Stainless steel wire for use on stainless,aluminum and high strength alloys