C228 Sliverax

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The C228 Sliverax is one of Spyderco's flipper knives.

Appearance in catalogs

The C228 Sliverax appeared in the following catalogs:


Paul Alexander

History, mentionings from the forums etc.

Information from the Spyderco catalog on the web

C228 Sliverax

"Designed by automotive engineer and knife enthusiast Paul Alexander, the Sliverax is the first factory-made folding knife to combine Spyderco’s Compression Lock™ mechanism with a flipper-style opener. Its sleek drop-point blade is crafted from CPM® S30V® stainless steel and proudly includes both a fully accessible Trademark Round Hole™ and an index-finger flipper to support a full spectrum of one-handed opening options with either hand. A full-flat grind gives it outstanding edge geometry and its slightly negative blade-to-handle angle enhances its cutting leverage and shortens its opening arc for swift, positive deployment.

The Sliverax’s blade is supported by Spyderco’s patented Compression Lock mechanism—a high-strength lock located in the spine of the handle to greatly reduce the risk of unintentional release during use. Its lightweight, open-backed handle design features stunning carbon fiber/G-10 laminate scales and nested stainless steel liners. This advanced construction style provides impressive structural strength, keeps the knife slim and pocket friendly, and offers a solid foundation for the knife’s lock mechanism. To allow convenient carry and keep the Sliverax instantly accessible, its handle includes a reversible deep-pocket wire clip that can be configured for right or left-side tip-up carry."

The C228 Sliverax in Spyderco's online catalog.


The C228 Sliverax is made in Taichung, Taiwan and has

SKU Handle Edge(s) Steel From/To MSRP Note Number made Grind Clip Clip positions Collectors club
C228CF Black, light peel ply CF/G-10 laminate PE Satin CPM-S30V Oct. 2017- $249.95 (2018) Regular production Full Flat Silver deep carry Wire LH/RH, TU Main

Most collectible variation

Questions regarding collecting the C228

Some interesting questions we are looking for an answer to:

Questions with an answer:

Technical information

Measurements (mm and grams) of the C228 Sliverax:

Variation Length overall Length closed Length blade Length edge Hole Ø Blade thickness Weight
C228CF 203mm 118mm 88mm 88mm 13mm 3.5mm 94g

Measurements (inches and ounces) of the C228 Sliverax:

Variation Length overall Length closed Length blade Length edge Hole Ø Blade thickness Weight
C228CF 8.00" 4.64" 3.48" 3.48" 0.51" 0.138" 3.3oz