C115 Ralph Turnbull T-Mag

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The C115 T-Mag by Ralph Turnbull was introduced in 2007 and shortly afterwards discontinued. The C115 has a non-locking blade that is held in the opened and closed positions with an Earth Magnet.

Appearance in catalogs

The C115 T-Mag appeared in the following catalog:

  • 2007 Spyderco Products


Ralph Turnbull

Ralph Turnbull Makers mark

History, mentionings from the forums etc.

Information from the Spyderco catalog on the web


"Innovational knifemaker Ralph Turnbull’s new Spyderco collaboration is the C115 T-Mag folder. It houses a powerful Rare Earth (Neodymium NdFeB) Magnet, mounted internally in the knife’s spine where the blade and handle join. The magnet performs the same function as a notch- or slip-joint, holding the blade open when used and closed when pocketed by way of magnetic pull. Gunmetal gray carbon fiber handle scales, and Titanium liners, have a pronounced finger choil that places the index finger behind the cutting edge further blocking the knife blade from closing when you’re cutting. The flat-ground blade is laser cut CPMS30V high-carbon steel that is well known in knife circles for exceptional long term edge retention and performance. The finger choil and the spot on the blade’s spine above the round hole have jimping (texturing) further keeping the hand engaged safely on the handle while cutting. The wire clip is ambidextrous, positioning the closed knife to carry in a pocket knife tip up." [1]


The C115 T-Mag is made in Golden, U.S.A., and has

  • a magnet that holds the blade in the opened and closed positions, and
  • jimping on the finger choil and spine.
SKU Handle Edge(s) Steel From/To MSRP Note Number made Grind Clip Clip positions Collectors club
C115CFP Gunmetal Gray CF PE CPM-S30V 2007 249.95$ (?) N/A Flat Saber Stainless wire clip LH/RH, TU Main

Most collectible variation

Questions regarding collecting the C115

Some interesting questions we are looking for an answer to:

Questions with an answer:

Technical information

Measurements (mm and grams) of the C115 T-Mag:

Variation Length overall Length closed Length blade Length edge Hole Ø Blade thickness Weight
C115 178mm 105mm 75mm 64mm 13mm 3mm 81g

Measurements (inches and ounces) of the C115 T-Mag:

Variation Length overall Length closed Length blade Length edge Hole Ø Blade thickness Weight
C115 7" 4 1/8" 2 15/16" 2 1/12" 1/2" 1/8" 2.8oz


  1. The C115CFP T-Mag in Spyderco's online catalog

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