Plier tool for closing clam-shell type electrical connectors

A plier tool for closing clam shell type electrical connectors onto electrical wires includes a pair of handles, an upper jaw and a lower jaw. The upper jaw and the lower jaw are movable between an open position and a closed position. The jaws move relatively closer together during a closing operation upon squeezing together of the handles. An upper die member having a pivotal connection point is pivotally attached to the upper jaw for pivotal movement during the closing operation. The upper die member also has a generally planar upper contact surface. The upper contact surface is adapted to continuously contact and slide upon a lid portion of a clam shell type electrical connector during the closing operation. A lower die member is rigidly attached to said lower jaw and has a lower contact surface. The lower contact surface has a cavity therein sized to receive and retain a base portion of clam shell type electrical connector during the closing operation.