Spyderco Forums

IMO, I think the Ikuchi design has a lot of promise, but I think it needs a bit of further refinement. I hope there will eventually be a 2.0 version.

The biggest issues for me are:
1. The flipper tab is hard to use consistently without slipping.
2. The lock bar is too difficult to access.
3. The ...

I would not use the Ikuchi as a fillet knife.

IMO, it is hard to open and close with wet or greasy hands. I even occasionally misfire with dry hands. The handle shape and texture doesn’t lend itself doesn’t lend itself to well controlled carving cuts either.

If I owned a knife manufacturing company, I would limit the number of steels used for blades so that the factory grinds and sharpening could be better optimized.

As far as I can tell, Spyderco doesn’t change their grinds or sharpening angles at all for different steels. That is why you see brittle ...

Mill a channel along the inner circumference of the hole, then insert a chamfered ring running on bearings. This will make fidgeters go crazy because of the ultra-smooth opening arc while ensuring people's thumbs don't get roughed up :grin-smiling-eyes


IMO, this is really the best idea.

My ...

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 ...

The term “tip strength” is a bit of a misnomer. “Tip fracture toughness” would be a better term, given that knife steels tend to fracture, with little to no plastic deformation.

Steels like Maxamet have high strength, but low fracture toughness. Thinner tip geometries will have higher tensile ...

Sigh stumbled onto this thread and thought hmm 🤔 maybe this will help sort out my confusion.

Nope! Just reinforced my confusion with HRC and bevel angles.

Sigh 😔 still optimistic that I will figure it out some day.


I'd personally ignore HRC numbers if I were you, it's best reserved as a QC ...

I really like the blade and the lock on the Native 5. The knife is really best suited to piercing and push cuts, but it works just fine for draw cuts.

I hate the the flat FRN scales with burning passion, and I can only recommend the knife if you are OK with modding the scales or replacing them with ...

Aside from a few outliers, I think most Spyderco’s have a BTE thickness of 0.015 to 0.025in.

There is BTE database thread, which has a fairly good sample size.
https://forum.spyderco.com/viewtopic.php?f=2&t=73097

When it comes to edge bevels me BTE thickness, I would say that Spyderco is ...

The whole intention in doing the original Serrata was using investment casting for the steel.
Another steel was not considered, and David Boye had proved that cast 440C was cutting like it did because of the dendrites.

Using a cold or hot rolled steel would mean that it is just a Serrata shaped ...

The cast 440c was interesting, but I would like to see the Serrata come back in a tougher steel.

I think both CPM Cruwear and and Micarta have been somewhat underutilized by Spyderco, but they don’t necessarily need to go together. They could have just made regular production runs, rather than playing games with crucarta sprints. There is really no other reason to associate Cruwear and Micarta ...

. Wish H1 was included like others in the corrosion resistant 10 rating: LC200N and Vanax. I have some knives in H1 and LC200N but not Vanax yet.


Same here. H1 doesn't get much coverage from him.


Larrin wrote a very comprehensive article on H1. It would get a 10 rating for corrosion ...

Looking at Larrin's article, a few things jump out at me:

...


Larrin's tables do not include hardness. I think your conclusions might change, when you consider hardness (resistance to deformation/rolling).

People value M4, 4V, Cruwear, and Magnacut because of the relatively high toughness at ...

Does the ratio between blade length and weight play into your decision to purchase a knife or not?
- No. Blade length and weight are considered, but independently. It is comfortable to be carried in a pocket? Is the blade long enough to accomplish the tasks I need it to accomplish?

How about ...

If you really care about the details, skip the ratings and look at the actual data that the ratings are based on.

I am! It was a comment on how fickle we are. I do look forward to trying Rex45 but you can see that reputations hang on a thread in the frenzied world of the internet.

I've never met a bad steel in a Spyderco or had trouble with chipping - even with zdp189 and S110v.

Sorry to give everyone a ...

Well put and agreed. Some people on this forum act like REX45 is garbage steel on here. Well I have a Native Chief that has still yet to need sharpening from EDC use Involving cutting branches and breaking down cardboard boxes. But I don't use my folders to stab steel drums or baton oak logs ...

I have pulled REX45 and M4 hardness measurements from the HRC Database: https://forum.spyderco.com/viewtopic.php?t=83847

REX45 Military - (66.3 - 67) HRC
REX45 Paramilitary 2 - (65 - 66.7) HRC
REX45 PM2's @ 66.7
REX45 Para 3 - 64.7 HRC
#40. P3 Lwt-rex45-65.2
#41. P3 G10 B. Orange rex45-66
#42. P3 ...

I am going to necro this thread. Hopefully, this will prompt others to provide their preferred edge geometry and finish for REX45 and possibly provide some feedback to Spyderco regarding the heat treatment.

I reprofiled the edge bevel to 15 dps. I finished sharpening on a 800 grit diamond stone and ...