Right after posting this message, I discovered Forstner bit extensions.
They are expensive ($29 each). Does anyone have any experience with these?
I am little skeptical of the two allen screws used to hold the Forstner bit
in place in the extension.
Go to your HD or Lowes and buy a 3/4 auger bit. You should be able to buy a
chiwanese made one for cheap. They have many lengths. Also a spade bit should be
long enough to do the job. Start the hole with your 3/4 forstner to keep the hole
clean looking if you like.
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