Carlos Moreno wrote:


I'm working on something that requires a hole at an exact
position and *perfectly perpendicular* to the wood's surface.

This would normally require a press drill. Except I don't
have a press drill. My arsenal of power tools is limited to
a regular drill, a circular saw, and a router (with plunge
base + fixed base).

So, I'm thinking I could use the router in its plunge base
to "simulate" a press drill. The problem is, I have to open
a hole in a piece of wood which is 3 inches deep. I have
no router bits that long.

Is there a way to adapt drill bits (for which the shank is
slightly below 3/8 -- but a lot more than 1/4) to the
router? I think I could easily accomplish the task if I
could do that.

If it's definitely not possible, can you think of some other
trick that could do it in this case? (I don't want to rush
my decision to get a press drill -- when I get it, I want
to have time enough to shop around and take a good decision
without any hurry)

Do not, repeat _not_ try to use a drill bit in a router.

What you could try is plunging as deep as you can with the router then use
that hole to guide a regular drill bit of the same diameter used with your
regular drill. If you need a larger hole you can then use the one you just
drilled as a pilot hole.

Better solution, as someone else pointed out, is to just get one of the
inexpensive gadgets that you clamp your regular drill into to hold it
perpendicular to the work.

Thanks for any advice!

Carlos
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--John
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(was jclarke at eye bee em dot net)