CRKT Seismic, CRKT Australia, Lion Knives, CRKT Melbourne, CRKT Knives

CRKT Seismic Deadbolt Lock Folding Knife, G10 Handle, Flavio Ikoma Design

SKU: CR5401


Forged to look its best when things get ugly.​​​​​​


Batten down the hatches. We’re convinced that the word “dainty” isn’t in Designer Flavio Ikoma’s vocabulary. We take his new 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.


  • Innovative Deadbolt® locking mechanism is simple to use and provides incredible strength
  • Flipper opening combined with IKBS™ ball bearing pivot system deploys the blade smooth and fast
  • G10 handles provide secure grip in all conditions
  • Lifetime Warranty
  • Specification

    Blade Length 3.969" (100.81 mm)
    Blade Edge Plain
    Blade Steel 1.4116
    Blade Finish Satin
    Blade Thickness 0.148" (3.76 mm)
    Closed Length 5.457" (138.61 mm)
    Weight 6.3 oz (178.6g)
    Handle G10
    Style Folding Knife w/Deadbolt® Lock
    Overall Length 9.438" (239.73 mm)
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