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blow torch hole in glass

how can i melt a hole in a glass bottle without breaking it? Answered

i hawe a few normal drill bits and a propane/mapp gas torch.

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A glass drill under running water works great if you want to make a hole.
I have used it on my terrariums and that glass is not especially sturdy.
But no problems.

A jet torch will easily get a bottle to malleable temperatures, poking it through once it’s soft would probably be the best way to make the hole. slowly let it cool by heating it less and less or it’ll shatter while cooling down.

Reply 5 months ago

What are you going to poke it with?
Melting glass sticks to every kind of metal except titanium.
Best thing is to get a glass hole saw. Like a drill bit only better for making holes in glass.
Just do your drilling in a sink so that you can have water running over the area your drilling to keep it from getting hot and shattering. You can also put a piece of wet paper towel in the hole saw to keep it cool.
Drill a perfect whole in seconds.

i hawe a few normal drill bits and a propane/mapp gas torch. ]]>