I usually just use those mini screwdriver sets (flat head) to depin the plugs. Just need to position find the lug which holds the pin in place and lift then pull (takes a few goes first off but once you get the hang of it, it is easy). Not all will be the same style so you just have to figure out how it goes together. There are some which are glued (not sure if a 20v loom will have these - probably not the ones you will use anyway) and sealed and probably wont be able to be removed.
I also take a pic of a plug before i start so I know where the pins go.