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Benchmade 590BK Boost Spring Assist Knife, CPM-S30V Black Blade

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The Boost spring assist knife is one of many new knives released by Benchmade this year. The unique handle scale showcases a dual textured and dual durometer design--a co-extrusion process that fuses two materials of different physical properties into one uniform or consistent cross section. Each Boost spring assist knife utilizes Benchmade's AXIS® Assist mechanism which is a fully ambidextrous operating system utilizing a dual thumb stud design to deploy a premium CPM-S30V stainless steel blade as well as integrating a slide safety on the spine. This Blue Class model, the 590BK, features a black overmolded Versaflex® handle with a dark grey Grivory® inlay, a drop point style blade in a black finish and the reversible deep carry pocket clip is designed for tip up carry only but is eligible for a left or right hand carry option. Made in the USA.


  • Blade Length: 3.7"
  • Overall Length: 8.52"
  • Blade Material: CPM-S30V Stainless Steel
  • Blade Finish: Black
  • Handle Length: 4.82"
  • Handle Material: Grivory® / Versaflex®
  • Weight: 4.6 oz.


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