7 Machine tools and structural parts therefor, namely, handheld oscillating electric machine tools, and handheld oscillating electric machine tools for sawing, cutting, filing, rasping, scraping, sanding, polishing, and cleaning; interfaces for machine tools and tools, namely automatically operated fixed or detachable equipment in the nature of structural parts for machine tools and tools, which serves as a detachable connection between a machine tool and a tool or a plurality of tools, namely, tools for sawing, cutting, filing, rasping, scraping, sanding, polishing, and cleaning; power tools and structural parts therefor, namely, handheld oscillating electric power tools, and handheld oscillating electric power tools for sawing, cutting, filing, rasping, scraping, sanding, polishing, and cleaning; machine construction parts, namely attachments for stock-removing and non-stock-removing processes, for crushing, pumping, compressing, vacuuming and spraying; processing devices, namely mechanical, electric and pressure-activated clamping tools, processing and adjusting tools; cutters for use with oscillating driving gears, namely, knifes for cutting various materials; power saw blades, and power saw blades for machine tools and power tools; abrasive plates and abrasive discs for power-operated machine tools and power tools; blades for powered tools; interfaces for machine tools and tools, namely, manually operated fixed or detachable equipment in the nature of structural parts for machine tools, which serves as a detachable connection between a machine tool and a tool or a plurality of tools