Forged, tempered jaws and special jaw shape for secure gripping, clamping and holding GEDORE vanadium steel 31CrV3, nickel-plated Jaw body in high-tensile sheet steel Automatically welded upper jaw - absolutely firm connection with the sheet steel body Well-conceived jaw design guarantees a three-point contact with all material cross-sections Threaded bore welded at bottom No widening under most extreme loading Safe release Release lever under constant pressure of special spring Release lever under constant pressure of special spring