The PREMIUM 3in1 depressed-centre grinding disc with zirconia alumina for angle grinders convinces with its high performance on steel, stainless steel (INOX) and cast materials. Aggressiveness and a long service life allow high stock removal in the shortest possible time. Thanks to its chemical purity, free of iron, sulphur, chlorine and fluorine, the disc is ideal for special applications such as nuclear power plants, because it leaves a neutral workpiece surface.