More Tool Woes

Once again I must call on the tool gurus for help.

I have to mount my reloading press on my workbench. The best way to do it is to drill holes and use hex bolts. But the holes have to be over 7" deep, and they have to go vertically through a two-by-six. And obviously, it will be bad if they aren't straight, because they will come out of the side of the wood.

So, what's the deal? I have a foot-long bit already.