Abrasive disks for power-operated grinders; Abrasive wheels for power-operated grinders; Power tools, namely, end mills; Power tools, namely, thread mills; Drilling machines and parts therefor; Polishing system for use in single-head machines comprising grinding and polishing discs for stone profiling and edges; Polishing discs for automated wet-polishing multi-head machines; Sanding pads for power-operated sanders; Power tools, namely, circular saws; Air powered tools, namely, screwdrivers; ...