No Blow Seal 2L round bottom flask to 100mm od Tubing

This video was going to be a no blow demo, while opening up a 4" hole on the bottom of a 2 liter flask, with the goal, to show a nice finished fire cut hole at the end, by using the same size tubing to pull the hole. Didn't quite go the way I wanted it to (in regards to the demo), had to do some things on the fly. It went well, and the seal came out nice! Sometimes you just have to go with it and do what you have to do on the fly!