Abstract: A fire head sprinkler tool comprising a pair of jaw extensions which may be either integral with or removably connected to a large capacity clamping or locking pliers. The locking pliers have a movable and a fixed jaw, and the jaws define a large cylindrical inner opening. The jaw extensions include upper working portions which further include concave gripping portions. The jaw extensions extend substantially laterally from one side of the jaw portion of the pliers, and the vertical axes of the jaw extensions are offset from the plane of the jaw side at an angle.