Chipped Glass from Drilling Overflow

[Josm315]

Decided to drill a future 40G tank propagation system I had in mind as practice for my 125G holes. The tape I had on the inside of the tank came loose as I broke through and I ended up chipping the tank. Is the chip pictured below enough to be detrimental?

Also, The overflow I purchased on ebay from modularmarine came with two gaskets for the hole. Should I leave them on their original position on the inside, or put one on each side of the glass?

Thanks in advance for your feedback!

 

[shovelhead]

No, it should be fine. I chipped all the holes I've drilled like that. My bulkheads always covered it.

 

[zwulfke]

Mine was too no issues

 

[Josm315]

Awesome! Just need to do that or better 4 more times for the 125g. Thank you!

 

[zwulfke]

Sometimes it's not doing it better the glass tenspds to chip slightly when you make it through. Make sure you let the drill do all the work