Using a grace and bit or a spade bit, you start the hole from each side and let them meet in the middle.Does NOT work with a twist drill bit.
Group: rec.woodworking Date: Tue, Sep 9, 2003, 11:48am (EDT+4) From:
> snipped-for-privacy@aol.com (BUB 209)
>This might sound silly, but it works - did you ever have to drill a hole >in wood
>that had to come out accurately on the other side? Say there was a metal
>plate with a 1/4" hole in it sandwiched to a 3" piece of oak, and you
>had no access from the metal side but you had to run the hole through
>the oak - if you can place the tip of your index finger of your free
>hand over the hole in the metal, put it there and start drilling from
>the other side, thinking, "if I
>don't move my finger, I'll drill right through it" - then remove the >finger >after the
>bit is well started in - your hole will end up accurately placed enough
>that you can get a bolt through. Sounds goofy, but its never failed me.
>******************************************************
>A twist drill made for making holes in metal will wander with the grain
>when drilling wood no matter what you do. A brad point bit or a Forstner
>bit will drill a straight hole in wood.
>Peace ~ Sir Edgar
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