Nowadays, a commonwealth has come to mean any government in which all people involved have a say, or a loose formation of nations with a shared loyalty. It is also the official designation of a few states including, Kentucky, Massachusetts, Pennsylvania, and Virginia and some U.S. territories.
1 Pneumatic tools are powered by compressed air. 2  Common types of these air-powered hand tools that are used in industry include buffers, nailing and stapling guns, grinders, drills, jack hammers, chipping hammers, riveting guns, sanders and wrenches.
Modern lathes are electrically powered. They are equipped with a drive motor which is connected to an electrical source. The drive motor transfers mechanical power to the gear â¦ box of a lathe to enable operation of its spindle and feeds. In earlier times lathes did not have a drive motor.