I've got a little 5.11 Tactical knife that they discontinued and I got on sale for 20$. Had it more than a year and I've even pried open a few windshield crates at my civilian job with it, still in good shape. The edge is convexed now because the whetstone I use is my great grandfathers and has a divot in the middle, but otherwise it's sharp enough to do what it needs to. I never leave the house without a cutting tool