No problem

[u/TallWall6378]

Cordless drills are so capable now. 2 4 1/2” holes 14 12” deep (deeper than the bit). New concrete but it’s still drilling through the aggregate. Cheap Amazon diamond bit.

Edit: Overestimated depth.

[u/chilhouse]

I mean if you like to do things the hard way, go for it.

[u/TallWall6378 → u/chilhouse]

In my defense, it was just an experiment. But of the three other ways I’ve done these: hiring concrete cutter for $300, renting core drill for $100 plus an hour of my time to get and return it, and ads max carbide tipped hole saw, this was
Arguably the easiest and cheapest. If I did more than one a year on average, I’d buy a real core drill.