Boker USA Kwaiken OTF Automatic Knife Blue Aluminum (3.4" Satin) 06EX550

Item #BHQ-115742
MSRP: $159.95
Our Price: $127.96
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*Due to high order volume, Orders with customizations will be delayed by 2 business days.

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Engraving Customization Disclaimer

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Engraving requests may contain material that Blade HQ considers inappropriate or simply do not want to place on products. At times this obliges us to decline engraving requests that may otherwise seem unobjectionable. If your engraving request is deemed unacceptable, your order will be canceled and you will be notified via email.

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Prices are subject to change without notice.

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  • Overall Length: 8.50"
  • Blade Length: 3.375"
  • Cutting Edge: 3.50"
  • Blade Width: 0.625"
  • Blade Thickness: 0.11"
  • Blade Material: D2
  • Blade Style: Standard
  • Blade Grind: Flat
  • Finish: Satin
  • Edge Type: Plain
  • Handle Length: 5.00"
  • Handle Width: 0.875"
  • Handle Thickness: 0.50"
  • Handle Material: Aluminum
  • Color: Blue
  • Weight: 3.15 oz.
  • User: Right Hand
  • Pocket Clip: Tip-Down
  • Knife Type: Double-Action OTF Automatic
  • Opener: Thumb Slide
  • Brand: Boker
  • Model: Kwaiken OTF
  • Model Number: 06EX550
  • Designer: Lucas Burnley
  • Country of Origin: USA
  • Best Use: Everyday Carry, Tactical
  • Product Type: Knife

  • Standard-style blade made from D2 steel with a satin finish.
  • Satin-finished thumb slide for OTF automatic double action.
  • Blue-anodized aluminum.
  • Deep-carry pocket clip for right-side carry.


The Kwaiken OTF knife is an exciting offering from Boker. This Lucas Burnley design features a milled aluminum handle that provides a comfortable grip grip. The blade pops open and closed with authority by using the slide-switch on the spine of the handle. A deep-carry pocket clip is included for everyday carry.

Boker is a big name in the automatic knife world! Check out our selection of Boker automatic knives!

Customer Reviews

Mechanism stopped locking up on retraction
Brandon T. on Jun 17, 2021

Let me begin by saying, I really like the design of this knife , and the materials are quality , lockup was nice and tight and I love the streamlined design. But after very very minimal carry time and almost no use aside from opening some cellophane the knife just stopped locking up on retraction. Tried compressed air etc.. no avail. I’m pretty sure something inside must have failed or broken off ?? Too bad . I liked this knife a lot

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