7 Machines, machine tools, and power-operated tools and apparatus in the nature of power operated hand-held cutting tools, power operated hand-held crimpers, power operated hand-held clinching tools, power operated hand-held pressing tools, power operated hand-held stripping tools, cutting machines, crimping machines, clinching machines, pressing machines, cable stripping machines, for fastening and joining of cables, pipes, sheets and plates; machines and machine tools and power-operated tools and apparatus in the nature of power operated hand-held cutting tools, power operated hand-held crimpers, power operated hand-held clinching tools, power operated hand-held pressing tools, power operated hand-held stripping tools, cutting machines, crimping machines, clinching machines, pressing machines, cable stripping machines, for use in joining of cables, pipes, sheets and plates; machines and machine tools and power-operated tools and apparatus in the nature of power operated hand-held cutting tools, power operated hand-held crimpers, power operated hand-held clinching tools, power operated hand-held pressing tools, power operated hand-held stripping tools, cutting machines, crimping machines, clinching machines, pressing machines, cable stripping machines, for use in joining of workpieces of metal and plastic; machines and machine tools and power-operated tools and apparatus in the nature of power operated hand-held cutting tools, power operated hand-held crimpers, power operated hand-held clinching tools, power operated hand-held pressing tools, power operated hand-held stripping tools, cutting machines, crimping machines, clinching machines, pressing machines, cable stripping machines, for use in joining of workpieces by pressing, crimping and clinching; machines and machine tools and power-operated tools and apparatus in the nature of power operated hand-held cutting tools, power operated hand-held crimpers, power operated hand-held clinching tools, power operated hand-held pressing tools, power operated hand-held stripping tools, cutting machines, crimping machines, clinching machines, pressing machines, cable stripping machines, for use in crimping of plug connectors on cable ends; wire stripping machines for removing the sheathing from electric cables