rubinetto - 1:34 pm on Dec 17, 2012 (gmt 0)
Using the disavow links tool is only a way to tell Google you wish those links to be ignored.
Google will give your request great consideration but you have no guarantee that something is going to change.
I have big doubts about the effectiveness of that tool, much better physically remove the links if you can.
Keep in mind that you'll keep seeing those links on GWT after using the disavow tool, so you have no way to understand what link (if any) is actually ignored by Google.
If you have a penguinized site I believe that tool alone won't solve your problems but is worth a try.