Power-operated tools, namely, grinders, walk-behind grinders, scarifiers, crack chaser saws, scoring saws, and floor scrapers, all of the foregoing for use with concrete, masonry, stone, mortar, asphalt, tile, grout, and cement applications only; tooling and accessories for use with power-operated surface preparation tools, namely, polishing pucks, polishing pads, transitional pads, floor pads, polishing discs, grinding heads, metal dots, scarifier drums, diamond blades, tuck point blades, crack chaser blades, scoring blades, cup wheels for concrete grinding, leveling, and coating removal, cutting wheels, edge pads, grinding discs, dust shrouds, namely, fitted dust shrouds for power machinery, power driven floor scraper ceramic bits, power driven floor scraper blades, wear bars used to prevent wear on tools during grinding or cutting, parts for power grinders namely adapters for attaching diamond tooling, backer plates for diamond tooling attachments, dust collection devices in the nature of an attachment for a power tool, all of the foregoing for use with concrete, masonry, stone, mortar, asphalt, tile, grout, and cement applications only