I'll show you step by step how I drill all of my tanks, everyone does it a little different this is just the best way that I have found to drill all of my aquariums.

This is the Hole Saw I use in this video 1 1/4
https://amzn.to/2w8tBxL

1/2 Bulk head (Use 1 1/4)
https://amzn.to/2JRQvkV
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1 1/2 Hole Saw
https://amzn.to/2QcICrC

3/4 Bulk Head (use with 1 1/2 Hole Saw)
https://amzn.to/2HtdYr6
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1 3/4 Hole Saw
https://amzn.to/2YFNPeC

1" Bulk Head (Use 1 3/4 Hole Saw
https://amzn.to/2YD9ALR
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Gear I use to make my videos

Camera
Canon SL2
https://amzn.to/2Ami1oq

Mic
Rhode VideoMic Go
https://amzn.to/3gh9ylD

Lighting System
https://amzn.to/31D17xg

Editing Software
Filmora
https://www.filmora.io/

I appreciate all of your support. Some of the links are affiliate links, which means that I may earn a commission if you make a purchase.