This Oboe came in for a new tenon cork and a service

When removing the keys we came across this unusual epoxy repaired tone hole

Discussion with the owner allowed us to proceed in making a new tone hole

Milling machine and holding jig for the oboe

The old tone hole is drilled out to the correct manufacturers size

We then machine the bulk of the tone hole away with a flat end mill

A piece of ebony is turned up to the correct dimensions of the end mill and a 20 degree taper is cut on the face

Up close of the machined hole

Up close of the replacement tone hole on test fit

The tone hole is flat sanded on a granit block to height

And glued in place, I also glued the tenon cork on at the same time hence the white rag

Faced away until smooth tone hole and exact height of manufacturers original tone hole

After 24hrs dry time, we hand face the tone hole with this facing tool

Finished tone hole and final ream to size

Oboe Tone hole Replacement

We complete the service and assemble the keys back on with a new cork pad on the G# key

Job finished