There are long saya rasps we have, but they are god-awful expensive. And I can rasp and rasp and still not get whatever it is that is causing the problem.
I'm in the process of cleaning the saya and i have some questions about those rasps you have mentioned:
1. Are they for sale, can they be found in the Bugei or Hunwei products?
2. How long are they, will they rich at the end of the saya?
3. Is extensive use of the rasp capable of damaging the wood of the inside of the saya if it has already swollen?
Keith, your insight so far has been immense and it has helped very much so i'm looking forward to your answer.
Thank you once again for your advice!