My former job in a factory wasn’t too hard on knives. It requires cutting plastic wrap, thick plastic straps, cardboard and the occasional plastic tier sheets. My Kershaw leek, link, Amp 3.25 and others got the job done but I had to sharpen them up every week or two. Then I moved on to ZT and used several...0900, 0566, 0350, 0450, 0770, 0801, 0808 and a couple others. I rotated them fairly frequently and barely ever had to sharpen those knives (some I never had to). And I did work there for about 5 years. I know some people use them a lot harder than I did, but those Elmax and S30v/S35VN steels held up great for my usage, especially compared to the 8cr & 14c28 steels.