Abstract: A wire crimping tool has two arms and an adjustable wire crimping device. The arms are pivotally connected to each other and each arm has a handle and a jaw. The adjustable wire crimping device is mounted on the jaws of the arms and has a duel crimping cavity and a threaded extension member. The duel crimping cavity is defined in a first one of the jaws and aligns with a second one of the jaws. The duel crimping cavity has an upper segment with a bottom and a lower segment. The lower segment is defined in the bottom of the upper segment and has a diameter smaller than that of the upper segment. The threaded extension member is adjustably mounted in the second jaw and has a crimping tip extending out of the second jaw and aligning with and extending into the duel crimping cavity.