Some Spyderco knives, like the Paramilitary 2, Dragonfly 2 and Delica 4, are made with a really unique steel alloy called K390, sometimes referred to as K390 MICROCLEAN.
But what is this steel alloy, and what does it offer? Here’s your primer.
K390 Chemistry
K390 was developed as an alternative to CPM-10V, which was renowned for its concentration of vanadium carbides, which...
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