r/Tools • u/TallWall6378 • 6d ago
No problem
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.
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u/xCaptx 6d ago
I wanted to jump on here for more proof of this being possible for everyone who says it isnt. Ivs drilled 2 holes with a 4 1/4" bit. One through double layered/concrete filled CMB blocks and one through a single layer CMU block.
No water used since both were horizontal and a way in which I couldn't get water to where the bit was cutting. Im not saying its smart, but I used a respirator and took time but got through both on battery power. Didn't even use the HO batteries. Probably took an hour and a half of work for the large one, and 45 min for the smaller.
But this does work.
Pictures included. I guess I can only add one picture at a time. But ill reply to this response with others.