I know this is an oldie... but this helped me out a little bit today too!
I had to take the pins out of a female ATX connector, and the regular desk staples were not cutting it so i used some bigger staples the accounting office people had. They ended up being better than the desk staples in both cases!
Hope this helps someone else! Thanks for the idea of using staples, I had been struggling with using small screw drivers with no success!
I had no such luck with a tool I purchased and after 45 minutes and no success I set it aside for the night. Now that I stumbled onto this, I'm gonna give this a go tomorrow after I get my hand on some staples. Thanks!