You want to be careful = with high speeds, since the top is fiberglass in resin, and the resin can melt if = you get it too hot.  Also, standard metal bits can tear it up a = little.  I have good luck with a brad point bit, available at most good hardware = stores and home centers.  Be careful when you go through that it does not = break out on the other side.  I prefer to go part way through, and when the brad = point starts to poke out the other side, stop and finish the hole from the = other side.
 
Bill
----- Original Message -----
From: Steve = Gough
To: vanagon@GERRY.VANAGON.COM =
Sent: Wednesday, June 13, 2001 = 4:43 PM
Subject: Drilling the Westy = poptop

Dear List,
 
I'm mounting some stuff, including a = solar panel, to the
top of my '86 Westy, and need to do = some drilling.
 
Have never drilled fiberglass = before.  I'm guessing I should
use a nice sharp bit and go slowly at high rotational speed.  =
Any other things I should know?
 
TKA,  Steve