Drilling a 110 Gallon Tank

[Plesoine]

I got my hands on a little older 110 gallon high marineland tank. I does not have built in overflows and I'm not a fan of hangon overflows. I want to drill this tank. I have drilled numerous tanks before but my question is does anyone know if the back of this tank is tempered ? I can't find anything on the internet. Thanks for any insight

 

[TheEngineer]

Here's a helpful video to check if the glass is tempered.

 

[Hellothere12]

I got my hands on a little older 110 gallon high marineland tank. I does not have built in overflows and I'm not a fan of hangon overflows. I want to drill this tank. I have drilled numerous tanks before but my question is does anyone know if the back of this tank is tempered ? I can't find anything on the internet. Thanks for any insight

Im 90% sure you can! did you try it?