Ferrum Forge SM-100 Stinger

$ 975.00

The Stinger model marks a revolution on how we think about knives and what can be utilized for what can be considered best in class materials.  Ferrum Forge has mastered the utilization of best in class materials and here is a rare and difficult to forge SM-100 blade which is a nickel-titanium alloy. Previously only used on one-off custom knives, Ferrum Forge has been part of the pioneering effort to promote this material for use in blades. The Stinger is the first knife model to utilize SM-100 in a production run which is limited to 100 knives.

Ferrum Forge's standard Stinger knives have a tumbled titanium frame lock handle with a blue anodized pivot and pocket clip. Blade color will vary from knife to knife. As with other Ferrum Forge Knife Works knives, the Stinger is outfitted with a steel lock insert/internal overtravel arrestor, Hoback Rolling Detent, and caged thrust bearings which all attribute to a smooth, fast dependable knife.


  • Overall Length:  7.33"
  • Blade Length:  3.30"
  • Blade Material: SM-100
  • Blade Style:  Drop Point
  • Blade Grind:  Flat
  • Finish:  Spectrum
  • Edge Type:  Plain
  • Handle Length:  4.03"
  • Handle Material:  Titanium
  • Color:  Gray
  • User:  Right Hand
  • Pocket Clip:  Tip-Up
  • Action:  Manual, Flipper
  • Lock Type:  Frame Lock

From the Maker:

SM 100 Revolution

"Corrosion-proof, flexible at high hardness (60-61RHC), and so tough NASA could not crush a ball bearing made of SM 100 in the machine they built specifically to crush ball bearings during material testing… why not make knives out if?

There is very impressive test data for this material, but those are just numbers until you actually make it into a knife and perform some knife-related activities.  Let’s call it performance testing.  Being the second person in the world to make knives with this metal, and being crazy enough to do tests on them I have to say this metal does not sacrifice any durability, edge retention, wear resistance, or impact resistance. In fact, as more standard knife testing is done on this metal I think we will see that is out performs all the common blade steels and many of the new powdered metallurgy steel alloys like the CPM, and CTS series steels that are sweeping the knife world

This isn’t like Stellite, Talonite, Beta Titanium, or Carbidized Titanium.  It is hardened through the whole blade, not just the surface.  It actually holds an edge!  It is very difficult to break because it can bend in ways steel just can’t and return to its original shape.

I’ve been carrying and using a SM 100 folder for several months now so I could get some first hand, real world performance experience with it.  I have to say, it more than meets my expectations and I usually carry Elmax or M390 so that is what I am comparing it too.  I am finding the edge retention to be very similar to Elmax, which means in my usage and definition of sharp that it only needs a touch up every two weeks.  But I like my knives hair shaving sharp all the time, if my knife is not popping hairs then it get a quick strop.  What does a knife maker cut on a regular basis you might ask?  A lot of cardboard, plastics, leather, and tree limbs.  I do actually prune the trees on my property with whatever knife I have in my pocket when limbs hit me in the head as I walk under them.  SM 100 has also survived without any nicks, and I can not say that for Elmax.  I am very hard on knives, because I know I can fix them, so not having a nick in over two months of my use has sealed the deal for me, I love this metal."

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