I know it seems crazy , I have alot of high end knives but I've kinda fell in love with this littlle guy. I was hoping maybe someone with some expeirience could help me . The washers that rest on the blade are some kind of plastic ? I was wanting to know if I could fit some bronze washers in there. If so , if someone out there has a boker nano and could give some idea on a size of washer I would love to try it. Thanks , Ron