Spyderco Forums

dsvirsky wrote: ↑

Mon Nov 17, 2025 11:43 am

Very cool. How about a picture of the knife itself, for our edification?

Sadly, I got no picture of the particular blade, since it was just a scrap. But here is a link to the typical type of knife I make:

Hi all!
Recently, I visited my good friend Dr. Marvin Groeb who oversees the analysis instruments amongst other things at Kern Microtechnic.

There, I was able to use their Leica microscope to whittle a human hair under magnification, the knife is one of my custom blades in M398, at 65 HRC, 3 cryo ...

weeping minora wrote: ↑

Thu Feb 27, 2025 12:53 am

This happened quite quickly. I'd like to see this Mule get a release sometime late this year, or early next, if all works out.

That would be really cool.

Hi Sal
Thanks for having me.
That sounds exciting.
I'm in close contact with the Buderus guys; if you need assistance, let me know.

Roman

Who is this steel from?

If I'm not mistaken, I thought Nitro V was exclusively from New Jersey Steel Baron, so I figured this might be from them as well and took a look at their website. I didn't find anything there though.


It's currently German only, but maybe still of use:
https://www ...

For those that have some extra time(couple hours) or a boring job you should check out these videos on Survival sharpening and edge retention done by The Home Slice. While the knives used are different designs it shows an area where Nitro V excels when compared to basic and "super" steels. Makes ...

Who is this steel from?

If I'm not mistaken, I thought Nitro V was exclusively from New Jersey Steel Baron, so I figured this might be from them as well and took a look at their website. I didn't find anything there though.

I’d be interested in a Mule, but I wonder whether Roman would be ...

Hello everyone
I saw this threat just now. Like others have correctly pointed out, if one wants maximum edge retention, there are better options. That being said, I was very surprised to see Nitro-X7 hold its ground against some PM grades in the video I posted on Youtube. While the majority of the ...

I am not a steel expert at all, but as an Austrian always proud when Böhler (Austrian company) is mentioned and produces good stuff! :smlling-eyes
(For those (few..?) who might not know (some Americans actually do not): Austria is NOT AustrALia... ;) )

Being half Austrian, I approve this ...

I have had such excellent luck using my Bohler M390 blade on my Spyderco C-36 Military model as my primary EDC for quite some time now. I find Bohler's M390 to be nearly a perfect steel for most everyday cutting jobs. It sharpens up really nicely and maintains a working edge for quite a while ...

I have had such excellent luck using my Bohler M390 blade on my Spyderco C-36 Military model as my primary EDC for quite some time now. I find Bohler's M390 to be nearly a perfect steel for most everyday cutting jobs. It sharpens up really nicely and maintains a working edge for quite a while ...

Glad my stuff is interesting to you. I'm very much looking forward, I think it will be cool to see what Spyderco makes of it!

After reviewing the Bohler link above, am I wrong in assuming this is a high-toughness, low-CATRA steel? Bohler only gives 2/5 stars for wear resistance. Doesn't have loads of carbon or vanadium. Regards the kknives_switzerland link, is the comparison made with Z-Tuff actually comparing apples to ...

Fireman wrote: ↑

Wed Jul 21, 2021 1:32 pm

Thanks for your efforts in getting this thing to market. I hope you stay involved in some way.

In any case I'll follow progress closely - out of curiosity.

I've been away for a while because I have an increasing work load with my main business, which is making steel custom knives.

While I was away, some people have asked me via email/Instagram if Rahven and KKnives_Switzerland are the same company. No, we are not the same company. I did knife related ...

Roman, if this material can be injection molded, can you make an integral knife that could not only make it stronger but be seamless for ease of cleaning? Or perhaps a blade and bolster? Something like this knife that is my favorite chef knife?
https://cdn.cutleryandmore.com/products/large/25686 ...

If these diamond epoxy things work, would a super vitrified diamond stone work as well?
https://www.triplebhandmade.com/shop/5000-grit-vitrified-diamond-waterstone

Didn't work well for me - though I used old prototype ones from practical sharpening which he sent me in 2019. They were softer than ...

Quick reply regarding sharpening in the picture below. I shared this on my instagram and due to timely limitations, I just paste it here. Let me know if you have any questions.

New materials requires a new understanding and we need to be students to understand the materials to make them work for us and not try to make it conform to what our preconceive notion‘s are. I feel this guy did not treat as such. This new material will not be for everybody but I appreciate you ...

https://youtu.be/exIBjSDAhYc

Roman,
please reach out to this guy.
He made me cringe when he attempted to sharpen it before testing it.
He for sure needs to research what he has before he messes with it and makes a review and potentially turn people off.


I had a conversation with him in my ...