
K390 VS S90V edge retention testing with a Spyderco Delica and Asher Spiro
Reviewed by @knifepile
Last observed: 2026-10-19 21:40 UTC. Check the selected seller for current availability.
Spyderco Delica® 4 Lightweight – 2.9" K390 SpyderEdge Blade, Blue FRN Handle – C11FSK390 is sold out — here are similar picks you can buy today.




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Spyderco Delica® 4 Lightweight – 2.9" K390 SpyderEdge Blade, Blue FRN Handle – C11FSK390 · Configuration not specified
New · Unavailable when checked
Last observed: 10/19/2026, 9:40:52 PM UTC
Exact configuration match has not been established.
Check this option at Going GearCPM S30V baseline for comparison
Composite 1–10 ratings from published steel testing and manufacturer data, informed by Larrin Thomas's public research. Assumes typical production heat treatment.
Specs derived from Spyderco Delica® 4 Lightweight – 2.9" K390 SpyderEdge Blade, Blue FRN Handle – C11FSK390 listing data — verify critical details with the retailer.
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