Abrasive cup brush with Ø6mm shank be chucked into drills. The nylon filaments, available in orange, have a silicon carbide fill and do not shed. They are easily flexed on uneven surfaces, making them more advantageous to use, as they do not produce sparks and can be used both in wet and dry conditions. This type of abrasive brushes are perfect for polishing, grinding, removing surface rust from metal, non-ferrous metal, steel and alloy, wood and materials with hollow voids, stainless steel, wood, plastic, etc. Brush available in 50 or 75mm in diameter, with a bristle length of 16 or 23mm, 6mm bore diameter and 4,500 maximum rpm.