A working tool including a tool body with a distal end at which a first engagement structure is disposed and an interchangeable working member including a mounting base and a working portion connected to a distal end of the mounting base. The mounting base includes a second engagement structure disposed at a proximal end of the mounting base and configured to engage with the first engagement structure. The working member is configured to be electrically connected with the tool body upon attachment to the tool body. The working tool is configured to allow the working member to be detached from the tool body and allow another working member with the second engagement structure to be attached to the tool body.