Repair or replace this fender (AMD)

What is the tool in the first two pics?
I've got a similar repair to do on my 73 Cuda fender. I'm going to try and pull it with the weld on pins and if that doesn't work I'll disassemble it. I have another fender that is good in that area that I can splice in as well.
it is a center punch , Spring loaded , No hammer needed . Pull back and let it go. easy to center punch with no damage from force of hammer hit it bad areas. Be careful though the spring will catch skin when you let it go.