After drilling a hole in metal it s a good idea to remove any sharp edges or burrs left behind.
Drilling holes in window frames.
Drilling holes in the double pane glass is the first step to removing the condensation by allowing air to access the area.
Step 1 install a 3 8 inch diameter glass cutting bit into a power drill or a hand held oscillating tool.
What i do is cut two 1 inch dowels or whatever small wood you have and fit it to the top of the window between the frame and the top of the window that is holding the ac.
Small holes in a wooden window frame are repaired easily with wood filler or putty.
If the pulled down window is holding the ac in i would not drill holes in the frame.
Do this in the least seen section of the window.
Drill a hole in the interior and exterior panes of the window using the drill and glass drill bit.
Use the machined holes in the bracket as guides and mark the.
Place a curtain rod bracket at the desired location at one end of the window frame.
Position a stepladder near one side of the window.
Step 2 drill a hole in the diagonally opposite corner of both the interior and exterior panes of the window.
You can buy fancy deburring tools to smooth sharp edges but before spending money on one try this trick.