Just bought a new fixed blade from a festival and I tried it out yesterday when I was camping. I noticed after a bit that the blade started wiggling. The handle is hollowed to allow things to be put in it ex: matches, string,etc. it looks like the blade is held in by friction and there's no screws or anything to tighten it. I have no idea what brand it is, there is no company marks or anything. Any help will be great. 