As far as I know, there is no tool for it as they are tamperproof. The small small spring wire that sticks out of the external threads prevents removal by locking to the underside of the fuse panel thread when you try to remove it (you can see the wire on the left side of the base in your picture link). If we need to remove one, we use needlenose pliers and collapse the rejector to the middle without damaging the fuse threads in the panel. Once you remove it this way it's not salvagable.
"Will it be cheaper if I drill the holes for you?"
I have one, it was my Grandfather's. It's a brass cylinder with a cutter sticking out the side that removes the metal lip. After the lip is removed the plastic adaptor can be remove. Whatever method is used the adaptor is trashed.
I looked for one of these myself with no joy. My neighbor needs it bad. She has a fuse panel with all 20-30 type s adapters and a mix of 12 and 14 wire. She can't put the right fuse in the 15a circuits. I can't imagine why someone would go to the trouble of installing the adapters and intentionally force you to over fuse them