masshunter
Active member
I have a couple of folders that are stiff opening now, after I used them and cleaned them. Tried gun oil, sewing machine oil, still stiff. One is a Victoinox Swiss army with about eight tools, the other is a Case trapper stag scales about 35 years old. I used them both quite a bit am puzzled why they both stiffened up. Never used WD 40 or anything that might leave a film. Just washed them with soap and water after fishing and oiled the joints. Any help would be great.