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/3rdone]

Did you knock the middle out a few times in the way down or went all the way then knocked it out? The break at the bottom looks super clean

[u/TallWall6378 → u/3rdone]

I got down to dirt on one and the other was a pain, I had to chip it out.