Benchmade 591BK Boost Folding Knife

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The Benchmade 591 Boost is the newest member of the Boost Family and carries the same comfortable dual-durometer ergonomics. The quick action of the Axis-assist mechanism, allows for ambidextrous access to strong, CPM-3V steel, opposing bevel, blunt pry-tip blade. Meant for your pocket, at home in your tool box. Made in USA.


  • Blade Length: 3.43"
  • Blade Thickness: 0.120"
  • Blade Steel: CPM-3V (60-62 HRC)
  • Open Length: 8.26”
  • Closed Length: 4.83"
  • Handle Thickness: 0.70"
  • Weight: 4.49oz.
  • Blade Finish/Color: Coated
  • Blade Style/Shape: Opposing Bevel
  • Clip Type: Deep-Carry
  • Clip Position: Reversible
  • Handle Material: Versaflex
  • Use: Every Day

WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to