C233 Mantra 3

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The C233 Mantra 3 is an in-house design and part of their Flippers series.

Appearance in catalogs

The C233 Mantra 3 appeared in the following catalogs:


Eric Glesser

History, mentionings from the forums etc.

Information from the Spyderco catalog on the web

C233 Mantra 3

"The Mantra 3 takes the proven style and functionality of Spyderco’s original Mantra design and expresses it in a practical, everyday carry format that combines a flipper-style opener with Spyderco’s patented Compression Lock™. The heart of the Mantra 3 design is its full-flat-ground, leaf-shaped blade, which is precision machined from CPM® S30V® particle metallurgy stainless steel. Engineered to open equally well with either its index-finger flipper or its fully accessible Trademark Round Hole™, the knife’s opening action is further enhanced by specially designed ball-bearing washers between the blade and the handle’s stout stainless steel liners.

In addition to providing structural strength for the handle, the liners also form the foundation of the Mantra 3’s high-strength Compression Lock™ mechanism. They are nested within handsome carbon fiber/G-10 laminate scales that have a subtle texture to ensure a positive grip. The butt end of each scale has machined recesses to accept a reversible deep-pocket wire clip, which offers a choice of discreet, left or right-side, tip-up carry.

The Mantra 3 faithfully maintains all the key qualities of its predecessors in a practical, affordable format that is ideally suited for everyday carry. It also supports a worthy cause, as Spyderco donates a portion of the sales of every Mantra 3 to The Parkinson's Foundation."

The C233 Mantra 3 in Spyderco's online catalog.


The C233 Mantra 3 is made in Taichung, Taiwan and has

  • Compression Lock
  • Ball-bearing pivot washers
  • Nested stainless steel liners
  • Flipper tab
  • Lanyard hole
SKU Handle Edge(s) Steel From/To MSRP Note Number made Grind Clip Clip positions Collectors club
C233CFP Textured black CF/G-10 laminate PE Satin CPM-S30V Oct. 2018- $240.00 (2019) Regular production Full Flat Silver deep carry wire LH/RH, TU Main

Most collectible variation

Questions regarding collecting the C233

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Technical information

Measurements (mm and grams) of the C233 Mantra 3:

Variation Length overall Length closed Length blade Length edge Hole Ø Blade thickness Weight
C233CF 184mm 106mm 82mm 82mm 12.1mm 3.0mm 82g

Measurements (inches and ounces) of the C233 Mantra 3:

Variation Length overall Length closed Length blade Length edge Hole Ø Blade thickness Weight
C233CF 7.26" 4.17" 3.24" 3.24" 0.48" 0.118" 2.9oz