I dont know a lot about the good and bad knife makers and know a little bit about the type of steel they are made out of. So im looking looking for a knife that is under $40 and has a good edge retention but also fairly good sharpenability. it needs to be a folder, linerlock, thumb studs or assisted opening. at least 3 inches of blade and good sturdy handle. I live on a farm so dont give me any of those strange looking ones with a lot of holes in them. I will be either wearing this in a pouch in in my pocket. So a pocket clip is a most, but if it is removable that is even better. So any suggestions would be appreciated.