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Spyderco Endura 4 Lightweight K390 - C10FSK390 - Serrated K390 Drop Point - Blue FRN - Lock Back

  • Spyderco Endura 4 Lightweight K390 - C10FSK390 - Serrated K390 Drop Point - Blue FRN - Lock Back
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$142.80
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BRANDSpyderco Knives
PRODUCT TYPEKnives
PRODUCT CATEGORYFolding
OVERALL LENGTH8.78"
CLOSED LENGTH4.98"
BLADE LENGTH3.80"
BLADE STEELBohler K390
BLADE TYPEDrop Point
BLADE EDGESerrated
BLADE GRINDFlat
LOCKING MECHANISMLockback
HANDLE MATERIALFRN
CARRY4-Way
OPENING MECHANISMThumb Hole
ORIGINJapan
WEIGHT3.3 oz.
BLADE FINISHTumbled
STEEL TYPETool Steel
MODELEndura 4

Spyderco Knives: Spyderco Endura 4 Lightweight K390, Serrated, SP-C10FSK390


The C10FSK390 Spyderco Endura 4 Lightweight K390 Knife is a new iteration of a classic everyday carry that features a 3.80 inch serrated drop point blade made of Bohler-Uddeholm K390 tool steel, .118 inch thick. The blade has a full flat grind, a notched thumb ramp for secure grip, and the Spyderco Hole for ambidextrous one hand opening. The blue FRN (fiberglass nylon resin) handle, 4.98 inches closed, has ergonomic contours and Bi-Directional Texturing for secure purchase, sturdy lockback, a lanyard hole, and a 4 position steel pocket clip. The Spyderco Endura 4 Lightweight K390 Knife has an overall open length of 8.78 inches, and it weighs 3.3 ounces. Made in Japan.

From the 2021 Spyderco Reveal 7 product guide: In 1990 Spyderco shook things up by introducing two knives, the Delica and Endura. First of their kind on the market, both folders opened up the knife market to lightweight performance, one-hand open pocketknives that just about everyone could afford. They settled as our top two bestsellers and their improvement hasn't slowed since.

We've always taken great pride in our efforts to push the envelope of performance by offering exotic blade steels in our knives. With that spirit in mind, we are proud to offer the Endura 4 Lightweight with a blade crafted from K390.

Manufactured by Böhler-Uddeholm, K390 MICROCLEAN® is a state-of-the-art cold work tool steel produced by the particle metallurgy process. Its advanced alloy mix was specifically developed to provide the extreme wear resistance and high compressive strength needed in industrial cutting, blanking, and punching operations. Despite its toughness, its exceptionally fine, homogeneous microstructure also makes it readily machinable and easy to heat treat.

Collectively, these qualities make K390 an outstanding blade material for true steel connoisseurs.


Spyderco Knives: Spyderco Endura 4 Lightweight K390, Serrated, SP-C10FSK390

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