Zirconia alumina, and semi-friable aluminium oxide abrasive grit blend, deliver an impressive material removal rate on metal applications. Grit is bonded using fully synthetic resin onto highly robust X-cloth with stable backing, for optimal sanding behaviour. Intended for deburring and welding preparation on carbon steel, mild steel, aluminium, non-ferrous metals and cast iron. Also suitable for removing discolouration, stock and surface imperfections. 22.23mm bore for standard locking nut angle grinders. For Carbon Steel, Mild Steel, Aluminium, Cast Iron & Non-Ferrous Metals Coarse Zirconia Alumina Grit X-Weight Cloth Backing Standard Bore Type 27 Wheel Dry Use Only For Carbon Steel, Mild Steel, Aluminium, Cast Iron & Non-Ferrous Metals Coarse Zirconia Alumina Grit X-Weight Cloth Backing Standard Bore Type 27 Wheel Dry Use Only