In this Instructable, we look at a way to drill a hole in a glass bottle.
The procedure is fast, simple and effective.
Diamond core coated drill bits are great for drilling glass bottles.
You will need a cordless drill. Cordless for your own safety - in case you drop it in the water.
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Bottles are slippery, so it can be challenging to drill a hole in exact point you want without scratching the bottle.
Melt the Instamorph and wrap it half way around the bottle.
When Instamorph has cooled down, drill a hole in it with a drill bit you are planning to use for the bottle.
Cover the bottle with water.
Put your Instamorph plastic guide on the bottle.
Now you can drill a hole in the point you want.
You can also use the guide to mark the bottle. Drill a little bit and then take off the guide.
Continue drilling without it to see the hole better.
How fast should you drill?
That depends. I keep changing the speed depending on how it feels.
After drilling so many bottles, you know when to slow down or go faster.
It's a good idea to practice on a bottle that is not too fancy.