Bosch 120 Grit Flap Disc X571 Best for Metal Grinding 180mm 2608607321 Pack of x10 Bosch flap disc suitable for ferrous metals. Angled for working on edges/welded seams and surface sanding at a work angle of 15-25 degrees. FEATURES Especially suitable for working on stainless steel, steel, cast iron, and sheet metal Powerful thanks to Zirconia/semi-friable aluminium oxide Fully synthetic resin bonded Consistently high material removal rate and long lifetime Glass-fibre backing pad, bomb-shaped Angled version - for working on edges/welded seams and surface sanding at a work angle of 15-25° SPECIFICATION Disc Diameter: 180 mm Bore Diameter: 22.23 mm Grit: 120.0 Max Speed: 8,500 rpm