Coarse Blue Zirconia Platinum Sanding Discs

Blue Zirconia discs are specifically engineered to handle the extreme hardness and "gummy" nature of platinum and other tough alloys. The coarse grit provides the necessary bite to cut through the metal surface, effectively removing casting skin and heavy tool marks that standard abrasives might struggle with. The zirconia alumina grain is self-sharpening, meaning it breaks down during use to constantly expose new, sharp cutting edges for a consistent rate of removal. These discs are essential for any high-end workshop specializing in platinum fabrication where efficiency and precision are paramount.