Phisherman wrote in
:

On Sat, 29 Mar 2008 19:13:40 -0400, "MiamiCuse"
wrote:

I need to drill a 5/8" diameter hole through a laminated beam that is
16" deep. This beam is sitting 10 feet above the floor across a room
support part of the roof. So I will be standing on a bench drilling
from below pushing the drill up.

I need this hole to be perfectly vertical as I will be passing a rod
through for a ceiling fan.

I know in the past when I had to drill through something much thinner
like a 2x4, I often end up with a slanted hole.

What can I do to ensure my drill is perfectly vertical?

I cannot afford to make a mistake and redrill.

Thanks,

MC


A perfectly made 16"-deep hole will be difficult to make,

HD and Lowes both sell long auger-style bits,and you can even add
extensions for deeper holes.

and how to
keep a hand-held drill plumb and steady is another problem. Perhaps,
clamp a table-top drill press to the beam and use various length 5/8"
bits?


Yikes!

didn't you READ the guy's post?
"So I will be standing on a bench drilling from below pushing the drill
up."


--
Jim Yanik
jyanik
at
kua.net