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Benchmade 133BK Infidel Fixed Blade Knife, D2 Black Blade

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Inspired by the Infidel double-action out the front flagship from Benchmade, the newly released Infidel fixed blade provides the same aesthetics--including the "X" factor of pure awesomeness that one can only experience by owning one. The design of the handle scale still provides the same "stepped" milling pattern that runs the length of the handle and the even bigger 4.5" blade houses the same blood groove which in actuality helps lighten the overall weight of the blade. This Black Class model, the 133BK, features a black anodized aluminum handle, a spear point style blade in a black finish and the Tek-Lok™ compatible black Boltaron® sheath includes a button-clasp security strap in addition to multiple lanyard holes and ports for a variety of carry angles and options. Made in the USA.


  • Blade Length: 4.52"
  • Overall Length: 9.21"
  • Blade Thickness: 0.14"
  • Blade Material: D2 Tool Steel
  • Blade Finish: Black
  • Handle Length: 4.69"
  • Handle Material: 6061-T6 Aluminum
  • Weight: 5.1 oz.
  • Sheath: Boltaron®
  • Sheath Weight: 2.5 oz.


  • Infidel Fixed Blade Knife in the style of Fairbairn - Sykes

    Posted by William on Jul 6th 2020


    Affordable fighting knife in the style of Fairbairn - Sykes. Excellent feel in the hand. Not for the novice. Sheath comes with a strap that only gets in the way when drawing .