Hi Bart,

You could take a piece of scrap wood and drill a 9/32" hole and test the
bolt in the hole. Alternatively you could use a 5/16" drill and this would
be more that sufficient. Do this also in a piece of scrap wood before
drilling into your wood turning. If you are sure that your hanger bolt is a
true 1/4" you could get clearance with a 17/64" drill if you have one. Use a
twist drill and that will give you a clean hole. Be fore you start the drill
also use a centre punch and a start point for the drill.
Good luck.
John

"Bart V" wrote in message
...
I need to drill a couple of holes to screw a 1/4" hanger bolt into the
heel of the neck (jatoba) so I can bolt it onto the pot/rim (also
jatoba) I turned on the lathe. I'm wondering what size drill bit to
use, something around 7/16" fit the bill, or that too big? I'm only
getting one shot at it else the neck for the banjo I'm making is toast
and I don't wanna screw it up at the last minute...
Also wondering if, before screwing in the hanger bolt, soaking the
drilled holes with oil would make the wood stronger?
Graciously looking forward to a hint or two,
Bart.
-
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