RUIKE Knives P831S Flipper Knife 3.35" 14C28N Satin Reverse Tanto Blade, Sandblasted Stainless Steel Handles, Frame Lock - P831S-SA
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$45.95

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Part #: RKEP831SSA | RUIKE Knives
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Description

RKEP831SSA: P831S-SA Flipper Knife

RUIKE Knives

The P831S flipper knife is an advanced version of the P831-SF, distinguished by their quick-deploy fins that replace the traditional thumb studs for effortless opening. These models of the pocket knife maintain the original's compact form and sleek profile while enhancing accessibility and ease of use. These knives feature Sandvik 14C28N steel blades, hardened and cryogenically treated to achieve a hardness of 57-59 HRC, providing exceptional sharpness and performance for various cutting tasks.

In addition to their remarkable deployment speed, the P831S pocketknife is designed with a frame lock mechanism to ensure secure blade locking and safety during use. They also include precision bearings with an internal lubricating ball made of high-carbon chromium steel for smooth operation. The P831S-SA features a sandblasted finish, while the P831S-SB offers a black stonewashed treatment, allowing users to choose a style that best fits their needs and preferences.

Specifications

  • Blade Length: 3.35"
  • Cutting Edge: 3.31"
  • Closed Length: 4.33"
  • Overall Length: 7.68"
  • Blade Material: 14C28N Stainless Steel
  • Blade Thickness: 0.130"
  • Blade Hardness: 57-59 HRC
  • Blade Style: Reverse Tanto
  • Blade Grind: Flat
  • Blade Finish: Satin
  • Handle Material: Sandblasted Stainless Steel
  • Locking Mechanism: Frame Lock
  • Pocket Clip: Stainless Steel (Tip-Up, Right Carry)
  • Weight: 3.28 oz.
  • Made in China

UPC Code: 6942870310084

Related Categories

RUIKE Knives, 14C28N Blade Steel, Steel Handle Material, Folding Knives, Folding Knives Frame Locks

Badges

Product Handle Badge: Steel Handles
Product Clip Type Badge: Pocket Clip
Product Steel Type Badge: 14C28N Stainless Steel
Product Lock Type Badge: Frame Lock

Customer Reviews

RUIKE Knives P831S Flipper Knife 3.35" 14C28N Satin Reverse Tanto Blade, Sandblasted Stainless Steel Handlesrated 5.000 stars out of 5 (1 review)
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RUIKE Knives P831S Flipper Knife 3.35" 14C28N Satin Reverse Tanto Blade, Sandblasted Stainless Steel Handles
rated 5 stars out of 5
Robert
 Kingsland, Ga
Jul 08, 2026
Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Lock Ease of Use, Lock Type, Overall Quality, Pocket Clip
Cons: Handle Material, Weight
What a great budget folder
I'm only giving the slightest negative because the scales are steel which is a little heavy but it's not that bad in pocket. And it's such a minimal complaint. I mainly looked this up to see that price creep has done to this once super cheap hidden gem and I'm glad to see as of writing this it's still under $50 and I hope it stays that way. The blade flips open from the frame lock, the frame lock holds positive, the pocket clip sets unobtrusive in the pocket, and the blade shape works great for the usual EDC tasks. And in an age of powder metallurgy steels I'm finding that good old 14C28N keeps ending up in my pocket because it's just so easy to keep sharp vs a steel that may stay sharp longer but then I need to take more time and diamond plates to get an equal edge. And those steels cost a lot more. Budget hidden gem for sure. If I ever lose this one or get silly and give it away I will for sure be back for another.