Can anyone recommend a glass bottle cutter?

[rbarata]

Machine oil...fill the bottle up to the point where you want to cut then immerse a red hot screw driver or any other piece of metal.
This is just a simple sugestion...

[Ray]

Originally Posted by rbarata

Machine oil...fill the bottle up to the point where you want to cut then immerse a red hot screw driver or any other piece of metal.
This is just a simple sugestion...

Would you explain that, please? I cannot picture how that would work.

[rbarata]

Originally Posted by Ray

Would you explain that, please? I cannot picture how that would work.

Thermal shock, I think. I have never done it...never needed. It seems to work with any oil or something not flamable and less dense than water.
Put the empty bottle in a cold water container, fill it with water to the level where you want to cut, put the oil so that it creates a thin layer of oil on top of the water and then the hot iron.

Probably the glass cutter is better...never used any of those.