The Vacchiano #7 Standard Cornet Mouthpiece.
Inner diameter = .620" or 15.75mm
The standard cornet models are available with all the same options as the Vacchiano trumpet mouthpieces. They are available in standard length cornet shank or the shorter traditional style shank.
For more information on cup, and bore options please visit the Vacchiano page of our web site here: http://storkcustom.com/Vacch%20trpt%20specs.htm