a dreml with a small burr, a properly sharpened nail, a very small riffler file, and perhaps a hundred or so other ways. are you intending to do "hobo" nickel carving ? if so, don't remove the date. i forgot- a very small flat-bladed screwdriver would serve as well.
There is this guys Shaun Hughes posting coin carving to the tube. Sometimes days several videos a day.
On his channel you'll find almost everything you do not know to ask yet.
One more thing. I do not wish to be blunt or rude, but you'll need to learn to search for information more efficiently, or get in touch with someone to teach you get started.