Ampoules are usually opened by hand, using a file or with protective gauze. As the head of the ampoule is snapped off, the glass often breaks leaving dangerous, jagged edges which can cut the user’s fingers. Slivers of glass or gauze fibers can also contaminate the liquid drug. CLIC-OPEN reduces these hazards by using a tiny tungsten carbide cutter to pre-score the glass. The ampoule head can then be snapped open without jagged edges.