.........If you buy a rotary tool, please use safety glasses when using a cutoff wheel. Cutoff wheels can shatter so you do need to protect your eyes. Practice cutting slots into a dead carto first.
Won't a hole punch work better on a sheet as opposed to a hollow clynder which is what a carto is? If you deform the clyndrical shape from the pressure of the hole punch, you will have leakage with the Liquinator.
Rotary Tool Kit - 80 Piece Set
Good advice....tried the automatic center punch and was able to get the holes made no problem but the carto does get deformed the larger you make the hole. I had no leaks but the wicking wasn't there compared to the dremel slot. Also noticed that the draw on the carto was diminished because of the metal being pushed in where the holes were made most likely pushed the poly into the center tube. Will have to play around with this and fine tune using the punch with a nail as in video below.
right now not putting too much stock in this method compared to the plain old dremel way with slots
