maintainence

I’m having an issue with my Kaneshin concave cutter having a little trouble closing. I’m fairly sure it got some rust in there because I messed up and left it out one night a few weeks back and we got unexpected rain. It’s mostly surface rust from what I can tell. What would be the best way to...

I was just wondering if anyone had any general tips on Foemina bark management. I have a tree with Jin several shari. I was going to clean off the bark they way I usually do for itoigawa. However I noticed that the new red bark layer is a bit more delicate on my Foemina. Does anyone clean bark...