Spyderco Delica showdown, M390 vs ZDP-189 edge retention testing.
Spyderco Delica M390 vs ZDP-189 edge retention testing. Thank you to Mike for sending this along for me to test. This is the replacement Delica from my warranty exchange.
Edge retention testing data sheets
Mike’s YouTube channel
Mike’s Instagram
Contact me at gdniel@
Follow me on Instagram at outpost76
As always I appreciate your time and thanks for watching.
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