No, this dude had micro stamps that fit all the words on 1 washer.
You mean this result?
Original design by https://blockmit.com/english/guides/diy/make-cold-wallet-washers/
With several twist on printable and other 3d printing marketplace
Then you need metal punches
Remember you only need 4chars of each words and you can use both sides of 1" washer
Hope it helps
Discussion
😯 wow...and still readable? Crazy! Never heard, will check it out, and please get back when u will find it, tnx 👥
Found it.