On Fri, 12 Mar 2010 13:08:28 -0800, "Lew Hodgett"
wrote:

Subject

After rereading and hopefully understanding the problem, short of
opening a seam thru that 1-1/2" plywood, as others have suggested, you
can't get there from here.

Unless.....................

You approach this problem like drilling a well, only horizontally
which will require significant cost to built all the componet parts.

Opening up a seam will probably less costly.

Back to basics, why is drilling necessary?

What is the purpose?

Lew



Ended up using 3 lengths of 1/2 inch pipe @ $7.50 each, 2 of 1/2 inch
pipe couplings @ $1.24 each, 2 of 1/2 to 3/8 reducers @ $1.35 each,
and 2 of 1/2 to 3/8 NPT bushings @ $0.89 each, plus a $16? 12 inch
extension bit (7/16" hex both ends).

Half an hour of labour welding two halves of the extension int the
pipe bushings and the extension was done.

Total cost less than $50.

Rented a 450 RPM drill and a 1 1/2" forstner bit for $14 for a half
day - so total outlay still under $65.
Half an hour to set up and drill the first set of holes and cut an
access hole in the floor where the cables will come out, and just over
10 minutes to drill the second set of holes.

Labour included still under a hundred to get the job done. The boss is
happy.