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.
How do you use pneumatic tools safely? 1  Review the manufacturer's instruction before using a tool. 2  Wear safety glasses or goggles, or a face shield (with safety glasses or goggles), and, where necessary, safety shoes or boots and hearing protection. 3  Post warning signs where pneumatic tools are used. 4  Ensure that the compressed air supplied to the ...