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.
(December 2014). A rivet gun, also known as a pneumatic hammer, is a type of tool used to drive rivets. The rivet gun is used on the manufactured head side of the rivet and a bucking bar is used on the buck-tail side of the rivet.The energy from the hammer in the rivet gun drives the work and the rivet against the inertia of the bucking bar.December 2014). A rivet gun, also known as a pneumatic hammer, is a type of tool used to drive rivets. The rivet gun is used on the manufactured head side of the rivet and a bucking bar is used on the buck-tail side of the rivet.