Has K390 "obsoleted" M4/REX45/HAP40?
Has K390 "obsoleted" M4/REX45/HAP40?
Once K390 Seki knives came out, it seems like everyone wants K390 everything
I'm guessing K390 is close enough for practical purposes
No one seems to miss Super Blue or Vtoku 2 that much, either
I'm guessing K390 is close enough for practical purposes
No one seems to miss Super Blue or Vtoku 2 that much, either
Re: Has K390 "obsoleted" M4/REX45/HAP40?
I think Sal has said “All good just different.”
M4, Rex45, and Hap40 are all very similar steels (especially the latter two).
I still want Rex45 and K390 and hope we see even more.
M4, Rex45, and Hap40 are all very similar steels (especially the latter two).
I still want Rex45 and K390 and hope we see even more.
rex121 is the king of steel, but nature’s teeth have been cutting for hundreds of millions of years and counting :cool:
Re: Has K390 "obsoleted" M4/REX45/HAP40?
I want Rex45 in everything. I have several K390 blades, and I love them -- but I love Rex45 more. I want a Street Beat in Rex45. Actually, I want like 3 of them.
--Jeremy
Re: Has K390 "obsoleted" M4/REX45/HAP40?
Looks like K390 is taking the place of ZDP. But people love the steels they love even if another is “better” in some dimension.
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Re: Has K390 "obsoleted" M4/REX45/HAP40?
I still like superblue, vtoku 2, and 52100, along with a bunch of others.
I think the big deal about k390 compared to rex45, is that k390 is regular production and that opens up a lot of doors.
I think the big deal about k390 compared to rex45, is that k390 is regular production and that opens up a lot of doors.
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Re: Has K390 "obsoleted" M4/REX45/HAP40?
I would like to see more Super Blue. It's such a pleasure to sharpen.
- Connor
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"What is a man profited, if he shall gain the whole world, and lose his own soul?"
Re: Has K390 "obsoleted" M4/REX45/HAP40?
It also seems like a lot of models people are requesting be made in K390 have already been done in Rex45, like the Shaman, or aren’t made in Golden like the Streat Beat.VooDooChild wrote: ↑Fri Feb 19, 2021 3:24 pmI still like superblue, vtoku 2, and 52100, along with a bunch of others.
I think the big deal about k390 compared to rex45, is that k390 is regular production and that opens up a lot of doors.
rex121 is the king of steel, but nature’s teeth have been cutting for hundreds of millions of years and counting :cool:
Re: Has K390 "obsoleted" M4/REX45/HAP40?
I don't see why one type of steel would make any of the others "obsolete". I think I only have one knife in K390 (Urban). So I certainly don't consider all my knives with other steels to be obsolete. While I still plan on getting one or two of the K390 Seki models it's definitely not a priority. If I never get one I won't lose any of my enthusiasm for knives
My lady has a ZDP Ladybug that she really likes. A couple months ago I asked her if she'd like to try a Dragonfly. I gave her my V-Toku 2 DF to try. A couple nights ago I saw it laying on the bathroom counter (where she puts her daily carry stuff, jewelry etc). I opened it up and it was all full of tape goo and dull as can be. I cleaned it up and sharpened it for her. I love how sticky sharp V-Toku gets. I handed it back to her and asked if she liked it. Her reply was yes she uses the heck out of it. No need to buy her the K390 one I guess
My lady has a ZDP Ladybug that she really likes. A couple months ago I asked her if she'd like to try a Dragonfly. I gave her my V-Toku 2 DF to try. A couple nights ago I saw it laying on the bathroom counter (where she puts her daily carry stuff, jewelry etc). I opened it up and it was all full of tape goo and dull as can be. I cleaned it up and sharpened it for her. I love how sticky sharp V-Toku gets. I handed it back to her and asked if she liked it. Her reply was yes she uses the heck out of it. No need to buy her the K390 one I guess
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- bearfacedkiller
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Re: Has K390 "obsoleted" M4/REX45/HAP40?
Has Maxamet obsoleted K390?
Does a GTR obsolete a Maxima?
I think K390 is higher performing but I don’t think it has made anything obsolete.
Does a GTR obsolete a Maxima?
I think K390 is higher performing but I don’t think it has made anything obsolete.
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Re: Has K390 "obsoleted" M4/REX45/HAP40?
I’m very happy with rex45. I just don’t have a need or want for k390 right now. I have a dragonfly and manbug in zdp, yet I see no reason to drop them for k390 or anything else. Trying to be content with what I have isn’t easy but it sure makes new purchases have more value...
Re: Has K390 "obsoleted" M4/REX45/HAP40?
I think from a purely practical perspective and for an just average guy like me each of these steels could make all the others "obsolote". In a blind test I probably could not tell the differences, at least when it comes to edge retention and "sharpenability" (just a guess, since I only have REX and HAP40).
Still, I´d like to try knives in all of these four steels - perhaps just to see, if I unexpectedly still can experience differences, perhaps just because I love how tool steels "live" and "patina", and they all might do this in a slightly different way.
HAP 40 of course is an exception here anyway, just because it is not "only" HAP40, but cladded HAP40/SUS410, which makes it difference both in looks and properties.
- A main advantage might be, that the cladding will act like a DLC coating concerning rust protection (especially in the pivot area), without, well, the need to do a coating . So a good choice for people who want the protection, but not the coating
- Then I could imagine that the SUS410 makes the whole blade (obviously not the edge of course) a bit tougher - though I don´t think that is of any practical relevance in folders.
- And: HAP40 is special in its looks, the tradition and history behind it.
Still, I´d like to try knives in all of these four steels - perhaps just to see, if I unexpectedly still can experience differences, perhaps just because I love how tool steels "live" and "patina", and they all might do this in a slightly different way.
HAP 40 of course is an exception here anyway, just because it is not "only" HAP40, but cladded HAP40/SUS410, which makes it difference both in looks and properties.
- A main advantage might be, that the cladding will act like a DLC coating concerning rust protection (especially in the pivot area), without, well, the need to do a coating . So a good choice for people who want the protection, but not the coating
- Then I could imagine that the SUS410 makes the whole blade (obviously not the edge of course) a bit tougher - though I don´t think that is of any practical relevance in folders.
- And: HAP40 is special in its looks, the tradition and history behind it.
Top three going by pocket-time (update March 24):
- EDC: Endura thin red line ffg combo edge (VG10); Wayne Goddard PE (4V), Endela SE (VG10)
-Mountains/outdoors: Pac.Salt 1 SE (H1), Salt 2 SE (LC200N), and also Wayne Goddard PE (4V)
- EDC: Endura thin red line ffg combo edge (VG10); Wayne Goddard PE (4V), Endela SE (VG10)
-Mountains/outdoors: Pac.Salt 1 SE (H1), Salt 2 SE (LC200N), and also Wayne Goddard PE (4V)
Re: Has K390 "obsoleted" M4/REX45/HAP40?
I don’t know what K390 has to do with those high speed steels.
http://www.KnifeSteelNerds.com - Steel Metallurgy topics related to knives
Re: Has K390 "obsoleted" M4/REX45/HAP40?
I mean obsoleted as in, will Spyderco make more knives in M4/REX45/HAP40, or will they just stick with K390 from now on
- Cambertree
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Re: Has K390 "obsoleted" M4/REX45/HAP40?
They all have their place.
K390 is probably my favourite steel in general for my purposes I’ve tried, and I’ve had a few knives in it since the K390 Pingo came out.
But I’ve been using my HAP40 Stretch at work this week and I’ll be carrying my Superblue Delica this weekend, and my enjoyment of those steels is not diminished in any way. Likewise with the CE 52100 PM2 which has been my main user knife at work for the last 8 months.
K390 is probably my favourite steel in general for my purposes I’ve tried, and I’ve had a few knives in it since the K390 Pingo came out.
But I’ve been using my HAP40 Stretch at work this week and I’ll be carrying my Superblue Delica this weekend, and my enjoyment of those steels is not diminished in any way. Likewise with the CE 52100 PM2 which has been my main user knife at work for the last 8 months.
- Cambertree
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Re: Has K390 "obsoleted" M4/REX45/HAP40?
I guess they’ll make what sells and what people ask for and what steels they have liked in their continuous R&D research and testing. Fortunately their decisions are not based solely on the latest internet hype.
K390 is a pretty amazing steel for knives though IMO.
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Re: Has K390 "obsoleted" M4/REX45/HAP40?
K390 steel is being added as a stock, non-sprint, non-exclusive steel option as far as I know. M4 was stock only on a few models and the other two steels were sprints. As others have said, K390 is replacing ZDP-189.
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- Naperville
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Re: Has K390 "obsoleted" M4/REX45/HAP40?
Mmmmmmmmm... an 20CV/M390/204P, M4 or K390 Street Beat -AND- YoJumbo. Yep, that is what we need.
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Re: Has K390 "obsoleted" M4/REX45/HAP40?
I'm not sure if most people can tell the difference in M4 vs HAP40 vs REX45 vs K390. I still like and use M4 and Rex45 but I have a PM2 in K390 that I use also. I already had PM2 in M4 but bought one in K390 anyway and I'm sure in my use I'm not likely to see the difference but I bought it anyway.
Re: Has K390 "obsoleted" M4/REX45/HAP40?
I’m liking the steel choices that Spyderco has offered me over my ten years here. VG10 is not obsolete.
Oh, wait, we’re talking M4/REX45/HAP40... :p
I suspect that some Spydie models are far more likely to become obsolete than any proven steel, which is not to say that a proven steel like the ones mentioned will be constantly available.
Oh, wait, we’re talking M4/REX45/HAP40... :p
I suspect that some Spydie models are far more likely to become obsolete than any proven steel, which is not to say that a proven steel like the ones mentioned will be constantly available.
-Marc (pocketing an M4 Sage5 today)
“When science changes its opinion, it didn’t lie to you. It learned more.”
“When science changes its opinion, it didn’t lie to you. It learned more.”
Re: Has K390 "obsoleted" M4/REX45/HAP40?
I was pretty sure K390, according tot he numbers, wasn't special enough to replace M4.
Some numbers don't match the rest of the pack.
Some numbers don't match the rest of the pack.
-Brian
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Waiting on a Squeak and Pingo with a Split Spring!
A distinguished lurker.
Waiting on a Squeak and Pingo with a Split Spring!