Re: How to bore large holes, plumb
Or use a drill press to drill 4" deep. Then use a handheld drill to go the rest of the way -- the 4" hole should be sufficient to guide the bit.
(What Keith said.)
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.