crwdns2933423:0crwdne2933423:0
crwdns2918538:0crwdne2918538:0

How to Replace the Cork in a Trombone Water Key

crwdns2936025:08crwdne2936025:0 —

crwdns2935477:0crwdne2935477:0:

crwdns2935483:0crwdne2935483:0

Rotate the ruler 90 degrees and repeat Step 7.

Your cork slice should now have four marks equidistant from the center mark.

Draw a circle connecting the four marks around the center.

crwdns2944171:0crwdnd2944171:0crwdnd2944171:0crwdnd2944171:0crwdne2944171:0