Tank Drilled in EDM?

[blacknife]

I am sure there are other places but rona has bits in their eco section i think they are 20-40 dollars depending on size and they have kind of a core fee if you return them they are cheaper when you get replacements. They work good for the few holes I have drilled. You can get cheaper ones online too at like mops.ca, and the lfs/sponsors might have some.