The thick, stiff, heavy-duty 65 Manganese wire is twisted into extremely stiff knots for the most aggressive jobs.
This kit, designed for use on an angle grinder, should be used on the toughest jobs, such as removing heavy corrosion, scale, and weld splatter from metal. (3-Piece) Industrial Angle Grinder Set The 4 in (102 mm) knotted wheel brush is designed to aggressively remove heavy corrosion, rust, paint, weld splatter, and scale from metal.