Hand operated tools for use in agriculture and fence construction including fencing wire strainers and tighteners; hand tools being straining devices of metal for straining wire fences; hand tools being tensioning devices of metal for the tensioning wire fences; hand tools being tensioning pieces of metal for tensioning wire fences; hand tools being straining pieces of metal for straining wire fences; hand operated fencing tools including hand operated boundary strainers, hand operated fencing wire straighteners, hand operated fencing wire clamps, and hand operated fencing strainers; and parts and accessories for all the foregoing