My Swiss tool is about two years old, and for the first year I had it as an EDC, and no, it has never loosened up. The tools are tight as anything as well. My poor nails were always sore when I had to use it because it was a tight pull on the individual tools. As a matter of fact, sometimes I'd have to pull one tool out just to reach another because it was too hard to use the nail nick on said tool. So, no, it won't loosen up. However, that is not necessarily a bad thing, as it shows it's a friggin hard-core, dependable tool. But tight, I believe, is how it will remain. I wonder if the tools or pliers are as hard to get to on the Spirit?