I am replacing the horizontal deck boards on my 12x12 deck. I have square drive screws in there now however, when I went to remove them either the screw head stripped or the screw broke off. I plan to use the hex head screws if I can ever get the old broken screws out without tearing up the joists. Got any suggestions on how to remove the broken screws or stripped head screws? I can use an easy out for the stripped heads hopefully, but the broken ones I don't know how to easily remove. I saw a tool that Rockler sells (screw extractor http://www.rockler.com/screw-extractor ) but this tubular hole saw would hit the joist and not be very useful. Thanks for any info.