Abrasive disks for power-operated grinders; Abrasive wheels for power-operated grinders; Blades for power saws; Blades for power tools; Core drilling bits; Drill bits for rock drilling; Metal clamps used for holding piece parts on machine tool tables; Polishing discs for automated wet-polishing multi-head machines; Power drill bits; Power tools, namely, drills, routers, circular saws; Router bits; Thread milling cutters being machine tools