wire extraction tool?

Can anyone tell me what tool i need to remove the pins from molex nylon connectors?

i believe they are called extraction tools. I looked up extraction tools, and there are thousands of them.

I am looking for one that i can use on the nylon connectors that are behind the key switch panel in precedents.

It looks like i could use 2 different sizes, since some of the pins are on 18 gauge wire and some are on 14 or 12 gauge?

Any help, parts numbers etc??

Thank you for your time.