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Columbia River

Columbia River CRKT: SEISMIC

Product Code : 794023540109


Mfg Item #: 5401

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CR5401: Flavio Ikoma 5401 Seismic


Batten down the hatches. We’re convinced that the word “dainty” isn’t in Designer Flavio Ikoma’s vocabulary. We take his Deadbolt innovation as definitive proof. With it, the Seismic everyday carry folder has proven to be outrageously strong without compromising on simplicity or usability—it’s got other folders quaking in their boots. 

For years, Flavio Ikoma of Presidente Prudente, Brazil toiled over the mechanism that was to become the Deadbolt lock. Finally, it’s perfected: steel bolts interlock with the steel blade and the liners when it’s deployed to yield outrageous strength. The IKBS ball bearing pivot system ensures it opens quickly and smoothly. A prominent button sits at the pivot point on the highly ergonomic G10 handle for simple disengagement. 

As a finishing detail, Flavio added a discreet torx screw in the handle for deployment customization. Modify the blade detent for an easier or more powerful flip that’s all yours. 

Seismic sets a new precedent for strength and simplicity. 

How Deadbolt Works

Steel bolts interlock with the blade when it’s deployed to yield outrageous strength. A prominent button sits at the pivot point for simple, intuitive disengagement without fingers crossing the path of the blade.


  • Deadbolt lock innovation provides incredible strength and it's easy to use
  • Flipper opening combined with IKBS ball bearing pivot system deploys the blade smooth and fast
  • G10 handles provide exceptional grip
  • Specifications

  • Blade Length: 3.969"
  • Closed Length: 5.457"
  • Overall Length: 9.438"
  • Blade Material: 1.4116 Stainless Steel
  • Blade Thickness: 0.148"
  • Blade Style: Drop Point
  • Blade Finish: Satin
  • Handle Material: G10
  • Locking Mechanism: Deadbolt
  • Pocket Clip: Tip-Up, Right/Left Carry
  • Weight: 6.3 oz.
  • Designer: Flavio Ikoma
  • Shipping Length1.25

    Determined at checkout.

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