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The P831S-SA&P831S-SB, an upgraded version of the P831-SF. What sets it apart is the replacement of the thumb stud with a quick-deploy fin, enhancing its ease of opening. It not only makes it more accessible but also retains its compact form, sleek profile, and razor-sharp edge.

  • Overall Length:
  • 195 mm / 7.68"
  • Closed Length:
  • 110 mm / 4.33"
  • Blade Length:
  • 85 mm / 3.35"
  • Blade Thickness:
  • 3.1mm/ 0.13"
  • Weight:
  • 93 g / 3.28 oz
  • Blade Material:
  • 14C28N stainless steel (57~59 HRC)
  • Handle Material:
  • 3Cr14N
  • Finish:
  • Sandblast
  • Blade Type:
  • Reverse Tanto
  • Locking:
  • Frame lock
  • Opening:
  • Flipper


  • Instant Deployment Experience:

Immediate Response: The P831S-SA & P831S-SB feature a remarkable quick-deploy fin replacing the traditional thumb stud, ensuring a silky-smooth opening experience.


  • Exceptionally Sharp Blade:

Professional-grade Material: Utilizing Sandvik 14C28N high-quality knife steel, hardened and cryogenically treated, achieving a hardness of 57-59 HRC, effortlessly handling various cutting tasks.


  • Secure and Reliable Locking Mechanism:

Frame Lock: Employing a frame lock mechanism to ensure the blade stays secure during use, significantly enhancing safety.


  • Smooth Articulation with Precision Bearings:

Precision Lubrication: Equipped with an internal lubricating ball made of professional-grade high carbon chromium bearing steel, guaranteeing smooth opening and closing of the blade at all times.


  • Versatile Blade Finishes:

Personalized Design: P831S-SA features a sandblasted finish, while P831S-SB boasts a black stonewashed treatment. These distinct finishes cater to individual preferences, whether for outdoor adventures or daily use, offering a style to match every taste.