Shows countersink cage won't work here

showscountersinkcagewontworkhere.jpg

Rudder horn calls for countersinking, however if you try to do it with a countersink cauge you will be buying a new part.

the curved portion of the horn causes the countersink cage to slide off the side.

Solution remove the countersink cage (unscrew it) and use the countersink by it's self.

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