Using a hand drill with guides helps in making completely vertical pilot holes if you dont have a drill press. Ive had plenty of screws pop out sideways in the past because of inaccurate pilot hole drilling.
http://www.frappr.com/fitzmaurice/photos/3511160
Using a circular saw is definetely the way to cut out access panels. What you want to do is plunge cut with the circular saw on all 4 sides, then trim off the extra bit in the corners carefully with a saber saw.
http://www.frappr.com/fitzmaurice/photos/3511210
I initially tried to make a plunge-cut with a saber saw---not easy! After chewing at the wood, bending a blade, but not making any real progress, i went "duhhhh--use a circular saw!" The one shown here is one we scored from a construction worker that left it at our house and never came back. It is actually meant for cutting tile, but works great for wood. This crazy little beastie of a saw spins at something like 13000 rpm, and the gaurd is broken, but man, it does some good, clean plunge cuts.
2 tool tips
- Bill Fitzmaurice
- Site Admin
- Posts: 28916
- Joined: Tue May 02, 2006 5:59 pm
This is still my favorite way to do it...used it again today 
http://billfitzmaurice.com/phpBB2/viewtopic.php?t=1039

http://billfitzmaurice.com/phpBB2/viewtopic.php?t=1039