Exceptionally Long Lifetime - The R574 Best for Metal provides an exceptionally long lifetime when coarse sanding, deburring, removing welding seams and derusting metal surfaces. The abrasive surface is coated with high-quality zirconia alumina/semi-friable aluminium oxide grit that is robust and resistant to wear. The backing material is vulcanised rubber, providing stability for prolonged work The R574 Best for Metal is compatible with Angle Grinders and Drills The grit is bonded using fully synthetic resin for wear resistance in heavy-duty applications. With 22.23 mm bore for standard locking nut angle grinders. Features and Benefits • Long Life • R574 Best for Metal has an exceptionally long lifetime on metal surfaces • The high-quality zirconia alumina/semi-friable aluminium oxide grit coating is robust and resistant to wear Specifications Disc diameter: 180mm Bore diameter: 22,23mm Bore size: 22,23mm Grit: 36