HAP40/ZDP-189 comparison

This video documents an edge retention comparison between HAP40 and ZDP-189, as well as sharpening the two steels. A Spyderco Endura 4 sprint run in HAP40 and a Spyderco Endura 4 in ZDP-189 were the knives used for the test. There’s some discussion about the steels I’ve used in recent tests, as well as ZDP-189.