Terminal pin release tool?

[Waterloo]

I have my fuse block off, chasing down a bad connection. I think I found it, but cannot get the terminal pin out of the block. I know there are tools for these terminals, to remove them. This is a 2008 ProStar, give me a clue here, what are the terminal pins called and or what tool do I need?

These are the terminal pins that you crimp on the incoming wire to the fuse block, they are square in shape with locking pins on the back. These are the terminals that your fuses in the panel make contact with. HELP!