Drilling into tempered glass requires special diamond drill bits in order to cut through the dense glass.
How to drill a glass door.
Periodically stop the drill and gently clear the glass dust from the hole with compressed air.
Certain glass and drill bits require different drill speeds in the drilling technique.
But use this approach on harder materials like metal masonry glass or tile and you ll waste time ruin drill bits and even wreck your workpiece.
Then insert a diamond drill bit into a drill and position it over the spot you want the hole to be in.
Countersink the holes using the correct size of countersink drill bit this will allow the head of the screw to sink into the fiberglass and sit flush.
Stop and replace the drill bit with the next size larger carbide tipped bit then continue drilling lightening up the pressure on the drill with each bit change.
If the window is actually dirty or streaked in between the glass you ll have to drill a hole in the window.
To avoid drilling through both sides of the door wrap the drill bits in masking tape allowing only 1 2 inch of the tip to show.
You just stick a standard drill bit in your drill and pull the trigger.
Add more lubricating oil as needed to keep the drill point cool.
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Assuming you have a modern vinyl window the bottom is the least conspicuous place to drill.
Anytime you drill into a window you run the risk of breaking the glass or damaging the window.
Step 4 drill the holes to the final size using the electric drill.
Here is a simple way to drill glass.
Glass can easily be drilled with the correct drill bit and a suitable lubricant coolant.
Step 1 install a 3 8 inch diameter glass cutting bit into a power drill or a hand held oscillating tool.
Drilling holes in the double pane glass is the first step to removing the condensation by allowing air to access the area.
Making holes in soft materials like wood is easy.
I drilled a few bottles to make a lamp.