Description
Spyderco Tenacious Lightweight C122PSBK 3.39″ Partially Serrated Folding Knife
The Spyderco Tenacious Lightweight C122PSBK combines one of Spyderco’s most popular value-oriented folding-knife designs with lightweight FRN construction and a versatile partially serrated cutting edge.
Featuring a 3.39-inch satin-finished 8Cr13MoV stainless steel blade, black fiberglass-reinforced nylon (FRN) handle, Spyderco Round Hole™ and secure LinerLock, the Tenacious Lightweight provides substantial everyday cutting capability without unnecessary weight or premium-knife pricing.
Its partially serrated edge makes this model particularly useful for users who regularly encounter a mix of everyday materials, from cardboard and packaging to rope, cord and webbing.
3.39-Inch 8Cr13MoV Stainless Steel Blade
The Tenacious Lightweight features a 3.39-inch 8Cr13MoV stainless steel blade.
8Cr13MoV is a practical stainless steel commonly used in value-oriented working knives because it offers a useful combination of:
- Good corrosion resistance
- Dependable everyday cutting performance
- Reasonable toughness
- Straightforward sharpening
- Excellent overall value
For a knife designed to actually get used, 8Cr13MoV provides practical performance without requiring complicated maintenance.
Satin Blade Finish
This Tenacious features a satin-finished blade, giving the knife a clean, traditional appearance.
The finish pairs well with the black handle and highlights the blade’s distinctive Spyderco profile.
It’s a straightforward working-knife aesthetic that looks equally appropriate in an EDC setup, toolbox or outdoor gear kit.
Partially Serrated ComboEdge™
This C122PSBK configuration combines plain and serrated cutting sections on the same blade.
The plain portion provides a continuous cutting surface for controlled everyday tasks, while the serrated section provides additional cutting aggression when working through tougher or fibrous materials.
The combination is especially useful for cutting:
- Rope
- Cord
- Webbing
- Cardboard
- Heavy packaging
- Plastic
- General utility materials
For users who can’t decide between plain and serrated, the partially serrated configuration gives you a little of both.
Lightweight Black FRN Handle
The Lightweight version of the Tenacious replaces heavier handle construction with durable fiberglass-reinforced nylon.
FRN offers excellent strength while helping reduce overall weight, making the knife easier to carry throughout the day.
This makes the Tenacious Lightweight particularly attractive for users who want the blade size and ergonomics of a full-size folding knife without carrying unnecessary weight.
Bi-Directional Texturing™
The black FRN handle incorporates Spyderco’s Bi-Directional Texturing™.
The molded pattern is designed to provide positive traction from multiple directions, helping create a secure and comfortable grip.
This gives the lightweight handle more usable texture without requiring additional grip inserts or heavy handle materials.
Signature Spyderco Round Hole™
The blade incorporates Spyderco’s iconic Round Hole™ opening system.
Rather than relying on a conventional thumb stud, the opening hole provides a large and intuitive interface for blade manipulation.
It’s simple, functional and gives the Tenacious the unmistakable appearance of a Spyderco folding knife.
Secure LinerLock
The Tenacious Lightweight uses a LinerLock mechanism to secure the blade in its open position.
When the blade is fully deployed, the liner engages behind it to provide positive lockup during normal cutting tasks.
The design is straightforward, proven and well suited for the Tenacious’ role as an everyday working folder.
Four-Position Pocket Clip
The included four-position pocket clip provides excellent flexibility for everyday carry.
Users can configure the Tenacious Lightweight for:
- Right-hand tip-up carry
- Right-hand tip-down carry
- Left-hand tip-up carry
- Left-hand tip-down carry
That makes the knife highly adaptable for both right- and left-handed users.
Built for Everyday Work
The Spyderco Tenacious Lightweight is designed to deliver useful performance without unnecessary complexity.
Its 3.39-inch blade provides enough cutting edge for substantial everyday tasks, while the FRN handle keeps the knife manageable for regular pocket carry.
It’s well suited for:
- Everyday carry
- Work and jobsite use
- Package opening
- Cardboard breakdown
- Camping and hiking
- Outdoor activities
- General-purpose utility
- One of Spyderco’s Best Value-Oriented EDC Platforms
The Tenacious has developed a strong following because it provides many of the functional features associated with Spyderco knives at a more accessible price point.
The Lightweight version makes the formula even more practical for daily carry by reducing weight while retaining a useful full-size blade and ergonomic handle.
For someone looking to get into Spyderco without immediately wandering into the $200+ knife rabbit hole, the Tenacious is a damn good place to start.
Versatile Spyderco Performance
The Spyderco Tenacious Lightweight C122PSBK combines a 3.39-inch satin 8Cr13MoV blade, partially serrated edge, black Bi-Directional Textured FRN handle, Round Hole opener, LinerLock and four-position pocket clip in a practical full-size folding knife.
For buyers searching for a Spyderco Tenacious Lightweight partially serrated knife, the C122PSBK delivers dependable everyday performance, versatile cutting capability and proven Spyderco ergonomics at an approachable price.
Spyderco Tenacious Lightweight C122PSBK Specifications
- Manufacturer: Spyderco
- Model: Tenacious Lightweight
- Model Number: C122PSBK
- Product Type: Folding Pocket Knife
- Blade Length: 3.39″
- Blade Steel: 8Cr13MoV Stainless Steel
- Blade Finish: Satin
- Edge: Partially Serrated / ComboEdge™
- Opening Feature: Spyderco Round Hole™
- Locking Mechanism: LinerLock
- Handle Material: Fiberglass-Reinforced Nylon (FRN)
- Handle Color: Black
- Handle Texture: Bi-Directional Texturing™
- Pocket Clip: Included / Four-Position
- Carry Options: Tip-Up or Tip-Down, Left or Right Hand
- Primary Applications: Everyday Carry, Work, Outdoor Use and General Utility
Offering all the features and benefits that define a Spyderco knife in a budget-friendly package, the Tenacious has long been the centerpiece of our Value Folder line. The Tenacious Lightweight raised the bar even further, replacing the original G-10 scales with injection-molded fiberglass-reinforced nylon that reduced the knife’s weight by almost 12 percent and adds the extreme grip security of Spyderco’s Bi-Directional Texture pattern. For tactical end users. Includes pocket clip.




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