Spyderco Delica 4 Lightweight Folding Knife 2.9" K390 Satin Plain Blade, Blue FRN Handles, Lockback - C11FPK390

$139.50

MSRP* : $186.00 | You Save* : $46.50 (25%)

Description

SP11FPK390: C11FPK390 Delica 4 Lightweight K390

Spyderco

Spyderco Delica with K390 steel blade. Spyderco has always taken great pride in its efforts to push the envelope of performance by offering exotic blade steels in their knives. With that spirit in mind, they are proud to announce that they are offering a number of best-selling models including this Spyderco Delica with blades crafted from K390. Manufactured by Bohler-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 is proud to feature it on some of their most popular models, which are also distinguished with distinctive blue-colored handles.

Please note: K390 is a high-performance, non-stainless steel that can rust if cared for improperly. Always make sure to clean and dry your blade after use, and apply oil or other rust-inhibiting products if needed.

Specifications

  • Blade Length: 2.90" (74 mm)
  • Closed Length: 4.25" (108 mm)
  • Overall Length: 7.15" (182 mm)
  • Cutting Edge: 2.56" (65 mm)
  • Blade Thickness: 0.098" (2.5 mm)
  • Blade Material: Bohler K390 Tool Steel
  • Blade Style: Drop Point
  • Blade Grind: Full-Flat
  • Blade Finish: Satin
  • Blade Edge: Plain
  • Handle Material: FRN
  • Handle Color: Blue
  • Locking Mechanism: Lockback
  • Pocket Clip: Stainless Steel (Tip-Up/Down, Right/Left Carry)
  • Model Number: C11FPK390
  • Model Name: Delica 4 Lightweight K390
  • Weight: 2.4 oz. (68 g)
  • Made in Japan

UPC Code: 716104013753

Related Categories

Spyderco Knives, Spyderco Delica Folding Knife Series, K390 Blade Steel, Zytel Handle Material, Folding Knives, Folding Knives Lockbacks, Made in Japan

Product Handle Badge: Zytel Handles
Product Clip Type Badge: Pocket Clip
Product Lock Type Badge: Lockback
Product Country of Origin Badge: Made in Japan
Spyderco Delica 4 Lightweight Folding Knife 2.9" K390 Satin Plain Blade, Blue FRN Handlesrated 4.714 stars out of 5 (7 reviews)
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Spyderco Delica 4 Lightweight Folding Knife 2.9" K390 Satin Plain Blade, Blue FRN Handles
rated 5 stars out of 5
Km
Miami
Jul 02, 2026
Pros: Blade Material, Blade Sharpness, Overall Quality, Weight
Cons: None
No more Amazon boxes!
I saw this on a YT video with a burly man chopping up cardboard boxes with ease. I had a mountain of boxes at home that I somehow needed to reduce to rubbish-bag size to recycle, so I bought it. Amazingly, it worked! I filled 20+ garbage sacks, and my place no longer looks like a Hoarders episode.It handled most of the boxes with ease once I got the angle right. (I had to be standing over it rather than sitting down.) And for my fellow women, I recommend wearing at least household gloves, since the sliced-up cardboard is abrasive and you'll ruin your hands.The *only* thing I couldn't handle with this knife was a couple of appliance boxes. They were very thick cardboard and also too large for me to handle on my own.
Spyderco Delica 4 Lightweight Folding Knife 2.9" K390 Satin Plain Blade, Blue FRN Handles
rated 5 stars out of 5
Ks
Michigan
Feb 26, 2026
Pros: Blade Material, Blade Sharpness, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Pocket Clip, Weight
Cons: Ease of Opening
Great EDC
Great edge retention. Super lightweight EDC.
Spyderco Delica 4 Lightweight Folding Knife 2.9" K390 Satin Plain Blade, Blue FRN Handles
rated 5 stars out of 5
Kds
Michigan
Feb 20, 2026
Pros: Blade Material, Blade Sharpness, Handle Feel, Lock Ease of Use, Lock Type, Overall Quality, Pocket Clip, Weight
Cons: Ease of Opening, Handle Material
Light weight rockstar
I purchased a Spyderco Delica 4 Lightweight. This knife is very light EDC with an excellent blade that keeps a sharp blade for an extraordinary amount of time.
Read all 7 Reviews »
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