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The Zero Tolerance 0640 is a collaboration with knife maker Ernest Emerson. It features a CPM-20CV stainless steel blade for exceptionally good wear resistance. The handle is comprised of carbon fiber overlays with titanium scales, providing excellent durability without adding extra weight. An ambidextrous thumb disk facilitates opening the blade, while phosphor bronze washers allow it to glide open easily. A tip-up, reversible pocket clip ensures that this stellar knife is readily available whenever you need it.

  • Black stonewashed clip point blade made from CPM 20CV steel.
  • Ambidextrous thumb disk opener.
  • Titanium handle with black and white carbon fiber overlay.
  • Secure titanium frame lock.
  • Reversible tip-up pocket clip.



  • Overall Length: 8.60″
  • Blade Length: 3.90″
  • Cutting Edge: 3.75″
  • Blade Width: 0.97″
  • Blade Thickness: 0.16″
  • Blade Material: CPM 20CV
  • Blade Style: Drop Point
  • Blade Grind: Flat
  • Finish: Black
  • Edge Type: Plain
  • Handle Length: 4.75″
  • Handle Width: 1.03″
  • Handle Thickness: 0.55″
  • Handle Material: Carbon Fiber
  • Color: Black
  • Frame/Liner: Titanium
  • Weight: 4.40 oz.
  • User: Right Hand, Left Hand
  • Pocket Clip: Tip-Up
  • Knife Type: Manual
  • Opener: Thumb Disk
  • Lock Type: Frame Lock
  • Country of Origin: USA