Safely and quickly removes tungsten carbide and ceramic rings from fingers. Rings on swollen fingers are very dangerous. Unless removed, the ring will reduce circulation and could result in loss of that digit. The blades for ordinary ring cutters will quickly dull when try to cut titanium rings. The Ring Cracker will never dull. It uses no blades. With just a few turns of the knob, the Ring Cracker will quickly, safely and painlessly remove ceramic and tungsten carbide. An inexpensive must have for fire departments, hospital emergency rooms and jewelry stores.