Air powered tools, namely, drills, screwdrivers, rivet hammers, and saws; Air screwdrivers; Electric wax-polishing machines for industrial purposes; Grinding and polishing machines; Machine parts, namely, grindstones; Pneumatic hammers; Power-operated percussion hammer drills; Power-operated polishers; Screwdrivers, electric; Screwdrivers, pneumatic; Sharpening machines