1-Piece Standard Cornet MouthpiecesRim contours correspond to the Trumpet Mouthpiece models. 1 Piece Cornet Mouthpieces are available with the following standard Cups: "C" Cup Depth: Medium Deep Bore: #27 "B" Cup Depth: Deep Bore: #26 Please Note: Standard backbore on all cups is the #7. Each inner rim size also has a corresponding sized Trumpet and Flugelhorn mouthpiece.
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