Spyderco Forums

I’ve never seen the term “carbon migration” used in this context before and the explanation from that website is strange. I would avoid using it to avoid confusion.

I posted a video explaining differences with the first edition:

SpyderEdgeForever wrote: ↑

Tue Nov 04, 2025 3:07 pm

I have both books.
They are excellent, easy to read and mentally digest, while giving perfect details on blade steel and knife history.

Thanks!

sal wrote: ↑

Tue Nov 04, 2025 1:35 pm

Hey Larrin,

Is there a preferred source, by you, to get this book?

sal

Amazon prints it so Amazon is the main place to get it. Unless you are buying the PDF. The links are all in my article. The hardcover is the best format, in my opinion. My largest royalty comes from the PDF.

Thanks for sharing the book! I have an article about the updates and improvements: https://knifesteelnerds.com/2025/11/03/ ... d-updated/

Nice animations

Fun testing!

One critique of this machine is that it is easy to "cheat" and get good but fake results.

This is a critique that comes from people that don't understand how testing works. Any test has a set of parameters that it must be performed within. It would be like criticizing a scale because if you ...

A project charter was established before testing started. Previous results on finished and available to the general public products were used to calculate what numbers or percentages would be used. Both of them paramilitary 2s in their representative steel. All knives purchased came from reputable ...

Those are somewhat surprising results. If I were to have guessed, my pick would have been 15v. But in my (very) casual testing, Cruwear really impressed me.

My testing isn't exactly scientific. I find similar size fir tree branches, chop of the ends, then whittle all the knots and bark off. I ...

Emerson wrote: ↑

Thu Sep 04, 2025 12:19 pm

@Larrin , is the composition listed on the paperwork with the magnamax mule correct? If not, can you tell us the specific differences?

I can discuss the composition after the patent attorney lets me know the patent application has been accepted.

Evil D wrote: ↑

Thu Sep 04, 2025 11:40 am

@Larrin Correct me if I'm wrong here but wasn't there a hardness difference between the MagnaCut Mule and the later production folders? Or was it even after the folder production started?

That would be a question for Spyderco not me.

Crucible produced two heats of MagnaMax. Spyderco used the second for the "MagnaMax" mule. The more limited "Proto X" mule used the first heat. There were some small modifications attempted between the first and the second. These were prototype heats for analysis to determine if the steel hit the ...

I already wrote about these people three years ago: https://knifesteelnerds.com/2022/04/14/ ... poiler-no/

It’s not stronger than steel, it isn’t a “new Kevlar.” It’s not even clear if their process is any better than previous densified woods.

Hey Librarian,

Go for it. "Passion is the spice in the Sprit that makes excellence possible".

They sold out faster than anything!

I'd be curious as to what Larrin and Shawn think of your creation? No one better to critique.

sal

Very exciting! Always fun to see the first knives in a new steel ...

It also makes me wonder about @Larrin 's CATRA tests. As far as I know the test coupons were sharpened with guided sharpeners, but I wonder if the angle at the apexes were verified with goniometers. Plus I kind of wonder if it even matters much. If there's a test blade whose even is ground at 30 ...

I think it all changed in the '80s with (I'm not joking) Home Shopping Network, because prior to that most people had no idea what steel they had, it was just "carbon or stainless" but I think the HSN had so many knife segments talking about 440 this and 440 that, I think that's one of the ...

I think it all changed in the '80s with (I'm not joking) Home Shopping Network, because prior to that most people had no idea what steel they had, it was just "carbon or stainless" but I think the HSN had so many knife segments talking about 440 this and 440 that, I think that's one of the first ...

It was relatively rare to advertise steel types prior to the 70s and 80s. Some would advertise “finest cutlery steel” or similar without specifying a grade. It makes sense because when you go buy a car or a microwave you’re not asking what steel grades they are using, a customer generally does not ...

At 64 hrc- cpm154 not 154cm does outcut magnacut from what ive personally tested. Another knife tester/maker Steve Callari also found the same results. Idk what the hrc of the magnamax mules are, but cpm 154 at 64 hrc with custom small batch heat treat did outcut the mule in my controlled testing ...