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Old 07-29-2012, 11:25 AM   #1
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Afraid to drill

We removed the valence in the bathroom and we're going to hang a curtain over the bathroom window. I marked where I wanted the ends of the rods to go, and started to drill holes in the supports. I started with one that is about 2 inches to the right of, and 5 inches above, the window. The drill bit went in a little, then would not go any farther. I was afraid to push too hard, as I didn't know what I might be trying to go through. Any idea what I am hitting, is it okay to try to push through it, or should I move the supports farther out?

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Old 07-29-2012, 11:41 AM   #2
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Your probably hitting one of the studs in the metal frame. Typicaly it's OK to drill a small hole in one of these but the pressure required often causes the drill bit to go in too far after cutting through the harder material. Using one of these will let you control the depth of cut to avoid that kind of issue. Going all the way through is real bad and will require repair to the outside skin. The studs are usually tubs so the outside of the stud will prevent over drilling, but being under control of the depth is still the best practice. Amazon.com: General Tools S838 6 Piece 3/16-Inch to 1/2-Inch Drill Stop Assortment: Home Improvement

These are also available at most local hardware and big box stores.


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Old 07-29-2012, 02:51 PM   #3
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I would be willing to bet that you are hitting a metal stud or tubing that is part of the structural integrity of the RV. I would first use a very small drill bit to make a pilot hole and make certain that you limit depth of penetration to help make sure that you don't damage anything behind the metal surface. Once the small pilot hole has been drilled, then use the bit size required for the project you are doing.

As info, I have ran into this same problem when drilling some holes in the wall of my Monaco Dynasty, and have not ever experienced any problems when using caution during the drilling process.

Hope this helps you out and you can successfully complete your project.

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Old 07-29-2012, 11:07 PM   #4
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I don't know exactly what you are hitting? WRV ran a lot of the coach wiring along the top of the wall, hanging down a little between supports. To be safe I wouldn't drill any higher than the valance screws and you could probably push on through ok.
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Old 08-04-2012, 08:19 AM   #5
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IIWMI'd use one of the better stud sensors that will sense metal (not sure if they do aluminum tube) so as not to start a drill hole that would coincide with the fore or aft wall of the tube (I'm guessing you are hitting a vertical stud). Same would apply to a horizontal member, don't want to skim the edge, you want to drill thru single thickness face.
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