What are the different types of tone holes?
Drawn and Rolled – The tone hole is part of the body of the flute. It is shaped and stretched from the tube body and the edge is rolled over for a smooth lip. Found mostly on commercial production flutes. Soldered – Short tubes are cut and shaped to fit the flute body and soldered in place. Found on handmade flutes. The tone hole is then “undercut”, or machined on the underside of the tone hole for less turbulence of airflow.