Belt sanding machines; Concrete mixers; Electric concrete vibrators; Electric planers; Electric sanders; Extensions for power tools; Grinding and polishing machines; Power-operated abrasive wheels; Power-operated angle grinders; Power-operated polishers; Power-operated saws; Power-operated screwdrivers; Power-operated sharpeners; Power-operated shears; Power-operated tools, namely, drill hammers; Soldering irons, electric; Wet-dry vacuums; Wire drawing machines