A shearing tool has a fulcrum shaft, a first blade rigidly attached to the
fulcrum shaft, a first element also rigidly attached to the fulcrum shaft
and spaced apart on the shaft from the first blade, and a second blade
contiguous with a second element, the second blade pivoted on the fulcrum
shaft at one end of the blade, and between the attachment positions of the
first blade and the first element such that relative rotation of the first
and second elements causes relative rotation of the first and second
blades producing a shearing action.