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Rent a construction quality rotary hammer drill and a bit for it that will correspond to an anchor by the company called redhead it is basically a piece of threaded rod with a sleeve on one end that when put in the wall spreads out as the nut is tightened up.
The milwaukee is the best bet for drilling it will drill in new concrete and concrete that has cured for 50 yrs. It hits harder and at a slower pace than most consumer hammer drills (that has a smaller hit and way to fast speed) the right drill will drill it so well you will be mad that you had to pay for the rental cost for a minute of work.
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Been There, Couldn't do that, No Money, Maybe next time.
I did get the T-shirt, but I've put on some weight so it don't fit.
It made a nice grease rag!
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