Drilling there is no drilling with the the glue pull technique. They use a hot glue gun to glue this little stick onto the paint. The paint is not damaged and there is no drilling. When they are done they just pull the stick off from the side and the paint is perfect. Watch the video this is a large dent but it works for smaller dents also. Like I wrote earlier I had a dent similar to what you have but it was on the roof of my bmw and the glue pull removed it in just a few minutes. This is what the PDR guys use when they have a dent they can not get to. It's a new technique that started a few years back. Find a PDR guy in your area that does.
http://www.youtube.com/watch?nomobile=1&v=j7JprFshq2A