I also have had some trouble with these rods. One disintegrated completely, it transformed in a small puff of grey dust. It wasn’t even in a kit, I found it like that in a drawer inside the house. Another, a genuine Swedish fire steel, broke when I first used it. A large splinter came free and there was some of this grey dust inside the rod. Originally I thought these things where almost like a stainless steel knife: very dependable with minimal maintenance. One of the first I ever bought and never used (as a test) is almost twenty years old. But this seems not to be the case for every single rod. Check it once in a while just like matches or medication. So, I am not concerned about wear and tear but oxidation and have protected one (witch I wear often on a lanyard around my neck while sweating) with shrink tube.