The 4961 sialoX Fibre Discs are designed for heavy-duty sanding and grinding, delivering exceptional performance on unalloyed steels, low-alloy steels, and non-ferrous metals. Featuring durable aluminium oxide abrasive, these discs ensure efficient material removal and long-lasting cutting power. Available in P36 for rapid stock removal and P60 for smoother finishes, they are versatile for tasks like rust removal, weld preparation, and surface treatment. The robust fibre backing provides excellent stability and heat resistance, while the closed coating and resin-over-resin bonding enhance durability. A special cooling additive helps prevent overheating, making these discs ideal for both aggressive grinding and precision sanding.Features and Benefits Engineered for rigorous sanding and grinding tasks Delivers excellent results on unalloyed and low-alloy steels as well as non-ferrous metals Features a tough aluminium oxide abrasive that aids in efficient material removal Comes in P36 gri