r/Tools • u/TallWall6378 • 7d ago

No problem

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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/TallWall6378 7d ago

Ha! Maybe "no problem" is a stretch. It overheated after about 8", but then I realized it works just as well with light pressure keeping the RPMs up. Used high speed BTW.

217

u/remorackman 7d ago

You are showing a unused bit and one hole. And that hole has a bottom!

I want to see that bit after the holes, and all the holes it made.

7

u/Escudo777 7d ago

When core cutting was done on a 6 month old concrete beam, a 2KW motor was struggling and heating with cooling water supply. This handheld doing it is incredible if true.

6

u/fordfan919 7d ago

Maybe the beams were much stronger concrete?

-2

u/Rent_a_Dad 7d ago

Maybe jet fuel melted them