Review on DRILAX Fixture Vacuum Suction Coolant by Shawn Mortensen

Honestly I don't know how I managed to drill through the aquarium without this tool. I had to modify a piece by cutting (see photo) so I could install it in my used 180 gallon to drill the existing holes that were too small. A simple change that does not affect performance. Most people drill from the outside in, but I was afraid I'd crack the silicone seal if I could stand 180 gallons on it (20 year old aquarium sealant isn't the most forgiving). Also used this to drill the back of a 55 gallon for an internal overflow and was planning to drill 5 to 10.10 gallons for the breeding system. I've also used drilax diamond hole saws and they cut better than the cheaper hole saws (they also have a bit more diamond coating).