Must Make ~2.5" Hole In Poured Concrete Foundation Wall

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I figured with my luck I'd hit a piece of metal which would stop a carbide core drill driven by a hammer drill.
 
There was a bit of bar in the hole that I drilled and I didn't even feel it.

What would it cost to have a cement cutting/drilling company come out and drill a hole? I didn't look into it when I did mine because it was late on a weekend and had to get done ASAP.
 
I'm assuming your bit was carbide, right? I've read about drilling dry with diamond core bits, but I don't think they're used with a hammer drill.
I didn't find a dry diamond core drill rental around here-they want you to use water.

I couldn't even find a guy to get a quote. I'm sure they're out there-somewhere.
 
I believe it was a carbide bit but I could be wrong.
 
We have a few carbide core bits that we use occasionally, 3" , 4.25", and 5". They are all spline drive and run in a 1.5" roto-hammer. This is certainly the harder way to drill large holes, when compared to a core rig, but it will get the job done for alot less money. I would recommend you rent something similar with a 3" core bit, and just mortar the pipe in at teh end. It should be fairly cheap to rent, and easy to find........
 
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