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philo philo is offline
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Default Drilling glass tile

On 4/15/20 7:55 AM, wrote:
I am trying drill some holes in glass tile to allow the screws from a GFI receptical cover to seat properly. Purchased a 1/4" ceramic and glass bit and drilled a test hole in an extra tile. All went well.
Left it on the workbench and returned 1/2 hour later to find the corner had cracked off.
What went wrong ? Why would it do that ?
Thanks




When you drilled the hole, did the tile vibrate?