Abrasive wheels for power-operated grinders; Chain saws; Concrete vibrators; Dust exhausting installations for cleaning purposes; Electric drills; Electric floor polishing machines and apparatus; Electric glue guns; Electric hammers; Electric hand-held drills; Electric parquet wax-polishers; Electric scissors; Electric screwdrivers; Electric welding machines; High pressure washers; Power-driven wrenches; Power-operated angle grinders; Power-operated tools, namely, grinders; Saw machines; Ston...