Poor man's nut files

Where to get nut files nut slot files files such as a Grobet needle file cut a very clean slot Top One type I find handy for nut slots are screw slotting files They nut slot height I won't try another without proper files I just spent 20 + hrs on a bone nut for a Yahama 200s

nut slot depth The last bone nut I had cut and installed cost me £50, it would only take two nuts for the files to pay for themselves I bought a set of the