Form flanges on open ends of glass tubes.
What does a Flanger do?
Forms flange on open ends of glass tubes used in manufacturing laboratory and medical instruments and apparatus, using gas burner and handtools: Rotates glass tube over gas burner to heat end of tube. Inserts end-opening tool into tube to flare opening and closes jaws of flange-forming tool to shape flange. May rotate flange over gas burner to glaze flange or to add or remove glass to obtain uniformity of finished flare. May trim edge of flange, using cutting tool.