Knot Cup Brushes are for heavy-duty use for the preparing of metal surfaces before painting, and the removal of slag, rust, scale or concrete waste. Lessmann knotted brushes are filled with a special steel wire of high tensile strength in order to meet the demands of this type of brush. Products marked with a * have a bridle fitted which an be removed to expose a further 20mm of useable wire. Diameter. 80mm Bore. M14. Wire Gauge. 0.50. Wire Type. Steel. Max. R.P.M. 8,500. https://elecena.pl/product/27216739/lessmann-484-217-knot-cup-brush-80mm-m14x2-0-50-steel-wire 2024-11-10 https://elecena.pl/product/27216739/lessmann-484-217-knot-cup-brush-80mm-m14x2-0-50-steel-wire 2026-07-08