ALL PROFESSIONAL TOOLS' APT TJ9700 Jewelers Hand Held Finger Ring Cutting Tool, we believe originally designed by Rudolph Bever Inc. in Waltham, Mass., for Jewelers use to removing rings from swollen fingers or ring repair. A must for Medical and Emergency Workers because of its one tough cutting ability. Features a one piece safety lever w/thumb-plate, smooth blade guard that allows you to control the amount of pressure on the blade. Safety lever slides under the ring to protect the finger from the razor-sharp serrated saw when removing a ring from a persons finger. You hold onto the handle and twist the large thumbscrew with the other hand to cut through the ring. The lightweight hollow handle, box joint, completely enclosed saw/cutter with the comfortable grip design offer total control. Made from brass and chrome plated surface. Only 6-1/4" long. This is a toughest non-electric ring cutter. The Safe Way to remove a stuck ring. The Jewelers, Emergency Worker and Medical Professionals Choice! Features and Benefits: Safety lever protects the finger from the cutting blade, Large thumb screw operates a razor sharp serrated saw. Emergency Tool used by Professionals: Medical, Emergency Worker, EMT / EMS, Police, Firefighters, Jewelers