Spyderco Forums

Once again I do most earnestly beseech the Yule Lord for a CPM S90V jester before the old crucible stock is used up. Maybe in the color of winter pines, or the eternal snow-gravid shade of upstate new york skies. I reckon I am a population of roughly 1 in wanting this highly specific thing, but ...

I’m struggling to conceive how carbon in steel can migrate at room temperature. It’s in a crystalline structure isn’t it?

The evaporust writeup might be referring to what it’s doing to the rust layers on the metal. I’m not really sure.


i had a similar question; part of me wonders if they're ...

strongly agree that pink and blue are non-starters. since there's no essential link between preferences and gender that would offer clarity here, i appreciate the difficulty you face. if this is for a project along the same lines as the discussion regarding the polestar (was it the polestar re ...

Here's an example of 'carbon migration' in the context of iron oxide chelation from a manufacturer's FAQs:


"I got a black film on some parts after using Evapo-Rust®. What is it, and how do I remove it?

The black film is carbon from the steel. Steel is composed of a combination of carbon and iron ...

As far as I understand the rust resistant effect of most carbon based coatings is secondary to other effects such as surface wear resistance and colour, and mostly relies upon the trapping other more effective rust inhibitors / oils.

I don’t see why a carbon coating created by migration methods ...

I think you should educate yourself by going to knifesteelnerds.com.

I have no idea where you might have heard about “carbon migration”, but it certainly isn’t an accepted engineering term that is used in the way that you are using it. I would suggest starting with the following articles, if you ...

I don't think we will lose sight of M4. Such a great steel! Even with the Crucible . . . . . bankruptcy, many, many other companies make it.

Bring it on, at 64.5 hrc+! :bug-red

Proprietary Equivalents
Akers - Supra1
Akers - Alpha4
Allegheny Ludlum - DBL4
Assab - ASPM4
Atlas Steel - Atlas M4 ...

Echoing sentiments of others; regardless of its circulation as an ideological tenet, 'made in the usa' as a purity litmus or consumer value is to me at best incoherent and at worst, empty. There is almost nothing that, supply chain and externalities considered, is entirely 'made in the usa.' "Made ...

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That almost looks like someone refinished the iron sink with a aftermarket coating.

I guess the super high carbide steels are less fragile than we think


I dug around and it's an astracast "granite rok," a composite of ground granite or quartz and acrylic resin. Explains why it's possible to ...

I was happy to receive my Rex 121 Sage toward the end of June. This is my first Sage model, and besides the freakish nature of REX121 I was very happy to receive a knife made out of some of the last CPM steel that will ever be made in my home town.

Here I share a brief-ish review of my time with ...

Fastidiotus wrote: ↑

Wed Jul 09, 2025 9:54 pm

I'd love to act like I need a PM steel that was developed for casting space shuttle parts

it's not pm, but lc200n (as cronidur-30) was designed/used for space applications. so, wins across the board

There's also the upcoming MicroJimbo Sprint in S90V that I'm hoping to nab, but the MicroJimbo seems to be a polarizing design for many users.


the fluted carbon n5 is probably the top candidate for me currently, and i agree with your assessment; relatively smaller blades for steel with these ...

Head's up, knifecenter's website shows both varieties of the 121 Sage in stock as of 4:15PM EST. I was charged a few hours ago for the kc order I put in a few weeks ago during their sale (was opfocus level pricing!). When my card was charged earlier today they still showed OOS, so it looks like ...

There's a LNIB Forest Green N5 on eBay right now for a VERY good price

https://ebay.us/m/kfsety

My choice would be the CF Military 2 sprint or the CF Manix 2 XL exclusive
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that's been in my watchlist for a minute now; seemed pretty well-used to me from the scales? but still ...

if you were going to pick one s90v model, in production or not, what would it be? would enjoy arguments/cases made about why this or that one

obviously this is asking for subjective answers - i recognize uses and preferences vary. but like I wrote earlier in this thread, I still don't have an s90v ...

Says next month now. Definitely nothing released today that I've seen

I have my eye on this thread for the same reason. Fingers crossed

anyone know what's up with the "spy-derco.com" site? this an alternate company site, or a phish trap

The GB2. It's not close. Unless you have a very strong preference for a smaller blade with far less cutting edge, or a comp lock, for me there is nothing about the GB2 that is not better than the para 3. I've owned and used both for many years now. The GB2 is very comfortable, I have myself never ...