Well I tried the 1" bit, but used a 5/16" to drill a drill a pilot hole and make sure there was nothing behind..... one problem I couldn't find the hollow part of the cinder block
. The hardest part is the wall is covered with dry wall. I found the edge of the block, so I moved about 2" left of it, and drilled and got no where, from what I could tell i was over 1 1/4" in the block and it was still solid. My only guess was I was to close to the bottom of the block.
I gave up for the night, I had other stuff to do, so I figured I would do that later.
Any tips on finding the hollow part of the block?
Thanks for all the help so far, others with their sarcastic remarks (you know who you are) have way to much time on you hands
ETA: Yes I know there are some hollow blocks because there is a hole in the block one up for some phone lines.