How can I drill a hole in tempered glass without shattering it? Is it even possible? The hole only needs to be around 1/4" in diameter, nothing crazy huge.
How to drill a hole in tempered glass without shattering it
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Related Solutions
They sell what is called an "Offset" drill. Instead of the chuck being inline with the motor, it is turned 90°.
They also make drills where the chuck can be turned to get into tight spots. They also make an offset attachment for most drills.
Make a bow drill:
Get a block of wood big enough to hold in your hand. Scrape out small hole in the wood. The non-pointy end of the drill bit goes in that hole. This is called the "hand hold".
You're going to use this wood block to push the drill bit against the door.
Make a bow with some strong wood and strong string. Wrap the string around the drill bit, perhaps a couple times to get a good grip on the bit.
Drill into the wood by pushing on the handhold and moving the bow.
You can find more thorough instructions on creating a bow drill for firestarting here:
http://www.wildwoodsurvival.com/survival/fire/bowdrill/pmoc/basicbowdrill.html
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Best Answer
You can't. The tempered glass will completely shatter if this is even attempted. If you absolutely must have tempered glass with a hole in it, the hole or any other shaping must be done before the tempering process.