Abrasive disks for power-operated grinders; Abrasive wheels for power-operated grinders; Air powered tools, namely, drills, screwdrivers, rivet hammers and saws; Blades for power tools; Core drilling bits; Grinding and polishing machines; Power-operated polishers; Power-operated screwdrivers; Power tools, namely, drills, routers and circular saws; Sanding pads for power-operated sanders