Abstract: An improved monkey wrench comprising a handle having two prongs each having a space through hole, a main body rotatably disposed between the prongs of the handle, a spring loaded jaw mounted at the main body in the way such that it may be slightly moved towards or away from the main body, a movable jaw movably mounted into the main body, a push member slidably mounted on the top of said main body and fixedly attached to the movable jaw, and an actuating member mounted at the center of the main body and fastened to the handle.