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.
How to drill a glass door.
Anytime you drill into a window you run the risk of breaking the glass or damaging the window.
Here is a simple way to drill glass.
Drilling holes in the double pane glass is the first step to removing the condensation by allowing air to access the area.
I drilled a few bottles to make a lamp.
You just stick a standard drill bit in your drill and pull the trigger.
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Assuming you have a modern vinyl window the bottom is the least conspicuous place to drill.
Step 1 install a 3 8 inch diameter glass cutting bit into a power drill or a hand held oscillating tool.
The procedure can be long depending on the thickness of the glass and the drill bit needs constant lubrication in order to make it through the glass.
Add more lubricating oil as needed to keep the drill point cool.
Drilling into tempered glass requires special diamond drill bits in order to cut through the dense glass.
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.
To drill holes through glass start by attaching a small piece of tape or cardboard to the glass where you want to drill the hole which will prevent the drill bit from slipping.
Step 4 drill the holes to the final size using the electric drill.
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.
Then insert a diamond drill bit into a drill and position it over the spot you want the hole to be in.
Glass can easily be drilled with the correct drill bit and a suitable lubricant coolant.
Making holes in soft materials like wood is easy.
If the window is actually dirty or streaked in between the glass you ll have to drill a hole in the window.
Periodically stop the drill and gently clear the glass dust from the hole with compressed air.