How do you cut a hole through the bottom of a glass bottle?

You need a diamond core bit for the size hole you want, fasten the bottle in a drill press securely but carefully, its important you keep the bottle from moving, pick the area you want the hole and build a dam with clay to hold water, once everything is fasten, water in the dam, have the speed of the drill press at around 500rpm, now apply light pressure for 3 to 5 seconds, lift the bit slightly allowing the water to rinse the bit and apply light pressure again for another 3 to 5 seconds, continue these steps until you cut through the bottom. TIP: "DO NOT" get impatience and try to cut faster, you will only wear out or ruin the bit. If you follow these steps your core bit will last you through many-many holes. (I caution you against using a hand drill)

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