AC variable frequency drives that are used to control small and medium-sized motors in applications such as manufacturing processes, HVAC and pumps; Air-operated power tools, namely, impact wrenches, ratchet wrenches, drills, grinders, orbital sanders; Cutting machines; Drill chucks for power drills; Drilling machines and parts therefor; Electric knife sharpeners; Polishing machines for use in grinding and polishing metal, wood, ceramics and plastics; Power-operated polishers; Power-operated ...