I remember when Guy repelled down a mountain from one of his s90v knives. He did pull ups too in the shop. Survive Knives are worth the wait. I still have the 2 knives I purchased from him when he 1st started out. 😊
Hi! I'm the guy who emailed in December 2022 about edge damage on my GSO-8 after sectioning and limbing dry bamboo stalks. I was only asking if that was expected behavior from 3V. I never did get an email back but I guess the mention about bamboo and the transverse toughness of 3V was for me. Thanks. 👍
Hey there! Yes, dried bamboo can tend to be a bit of a problem for apex stability. We have some older videos of working dried material and that does break an edge down faster than most anything I've seen. It becomes immediately obvious why bamboo flooring is so popular.
The Delta HT is wonderful... I've been wanting a Basic Field knife for years now... They're really hard to obtain... Heh... I've noticed the same thing with my 3V knives (Bark Rivers). The spines take damage pretty easily. At least it's just not me noticing. Knowing you'll be using the Delta HT - I want one of your 3V knives even more now; I've already been wanting one for a long time now.
I didn't go that deep because we were mostly judging cutting edge apex stability but our newer GSO-5.1s and the GSO-6 in the video are right around .019-.020" behind the edge. The smaller EDC-4s are roughly .016"-.017" BTE. All edges were sharpened to 20° per side.
Excellent video, very informative. So, how does the K890 compare to MagnaCut when used in a larger knife like the 5.1? What happens when you use it as a pry bar or with twisting / torsional motions? Which would snap first? Which tip would break off / deform first if stuck in wood and twisted? How does K890 compare to MagnaCut in the corrosion / “stainless” dept? Are you going to offer the 5.1 in K890?
K890, at least in my opinion, is more akin to an improved 3V. It is a non stainless tool steel grade, with excellent toughness, high compressive strength, and relatively high abrasion resistance. The result is a cutting tool with very high functional toughness, that also resists deformation and has excellent edge holding. As far as your other questions, we have weather testing started and we can certainly do more comparative tests as we have time!
@@zdenekbart That is factually inaccurate. Magnacut is great and offers higher corrosion resistance but K890 has higher toughness (resistance to impact fracturing) and higher compressive strength, so it will resist deformation better. The differences are clear in the video. Those values, along with the good abrasion resistance properties means it will also hold a sharper edge for longer. Being a more homogenous 3rd generation particle steel means K890 will also have more consistent performance across a production run, just due to the higher steel cleanliness. You can check out our video on steel quality and why it matters for more information on some of that. It's just material science, so we're here to bring some light to the darkness on all of this. We have no dog in this fight except wanting the best possible tools for everyone. -Guy
If you are going to refine the nail chopping process, and I really hope you do, then I would build a fixed hammer kind of situation along with the blade holder you've mentioned and of course everything attached to an even plate or base. Then all the side to side tolerances could be minimized for future tests. Keep up the great work!
Bohler K890 is a great non stainless tool steel, that has excellent functional toughness and edge holding. It can support a very efficient edge. Uddeholm Elmax is a great stainless grade. Being higher in alloy, it doesn't have the same level of shock resistance as Bohler K890 but it is still plenty tough for a user knife and holds a great edge. Both are very fine grained and get scary sharp.
EXCELLENT tests Guy! Next time demonstrate the edge durability by hammering bone, we all know how tough bone is and it would be a more practical test for outdoor use knives!
1:13:45 bm get heat treated at Stack Metallurgy and their hardness aim is 62 to 64rc. Often tested at 62.8-64, but some may be less. Protocol as listed on Crucible. There are some more advanced protocols for m4, but bm dont use them. 4v is a better for hard use than m4. The geometry of that one is thin. Not for hard use in the least.
Did I hear these knives all have eleven degree per side edge bevels ? Or was that a different video I watched previously? Cause that’s awesome performance. Well done and great research.
Yes, all of the knives we will be offering with a Scandi style grind will have a geometry of 11° per side. We will explain more about that in our upcoming tabletop evaluation of the beautiful GSO-4.5 Bushcraft offered in the Scandi grind.
We're getting caught up quickly. GSO-4.5s are working through finish grinding right now. We'll have a more thorough update shortly. The progress has been tremendous now that we're all settled in back here in PA, so we're excited to shared lots of updates, that are quickly ending with shipping labels and smiling faces.
We're discussing that right now. We have some things to work out on our end as far as workflow but we should be getting back to that standard very soon. Small, tightly controlled batches will be critical. That 1st gen material doesn't like the stress of the Delta handling, which causes some additional processing challenges. Being 3rd gen microclean materials, K890, M390 and Elmax are already designed to handle that type of processing, so the workflow is much smoother.
@@Surviveknives I'm really looking forward to the weather testing. I like the looks of the performance of K890, but I'm in TX, and the humidity and sweat worries me. 3V has been okay as long as I keep it clean and dry. Standard carbon steels like 1095 and the like don't hold up well for me.
We did a shorter overview, explaining what we learned about each knife. The testing was done to learn more about how tool & die values realistically translate to user knife performance. I understand this wasn't mainstream content, it wasn't for everybody, but it did help a lot of folks better understand knife steels through this abusive visual demonstration. Please know this is just me, I'm detail oriented. I don't do this because I like to hear myself talk. Most days what I would like to be doing is hiking or exploring something, not making TH-cam content or working every day of the week in a factory. th-cam.com/video/vSn0a3uGXno/w-d-xo.htmlfeature=shared
Great information, just makes waiting for that delivery even harder to bare! Keep on keeping on!
I remember when Guy repelled down a mountain from one of his s90v knives. He did pull ups too in the shop. Survive Knives are worth the wait. I still have the 2 knives I purchased from him when he 1st started out. 😊
Good to hear you laughing and enjoying yourself. We all deserve that 👍
Am glad you stopped to mention the advantage of the domed spine 😎 Long, but great!
Thank you. Very interesting video and I enjoyed watching. You definitely go above and beyond to get the best products out the shop.
What a great film. You got this!
From Craig. UK.
Really like these vids. Now I am really stoked to get my GSO4.7 in MagnaCut! 😃
A bunch of those are wrapping up and they're beautiful.
Ceramic rod and a quick strop and that Delta is right back to normal!
Hi! I'm the guy who emailed in December 2022 about edge damage on my GSO-8 after sectioning and limbing dry bamboo stalks. I was only asking if that was expected behavior from 3V. I never did get an email back but I guess the mention about bamboo and the transverse toughness of 3V was for me. Thanks. 👍
Hey there! Yes, dried bamboo can tend to be a bit of a problem for apex stability. We have some older videos of working dried material and that does break an edge down faster than most anything I've seen. It becomes immediately obvious why bamboo flooring is so popular.
The Delta HT is wonderful... I've been wanting a Basic Field knife for years now... They're really hard to obtain... Heh... I've noticed the same thing with my 3V knives (Bark Rivers). The spines take damage pretty easily. At least it's just not me noticing. Knowing you'll be using the Delta HT - I want one of your 3V knives even more now; I've already been wanting one for a long time now.
Awesome! Keep up the great work! Just really wish there was a way we could see all the specs you cut out like bte thickness & such
I didn't go that deep because we were mostly judging cutting edge apex stability but our newer GSO-5.1s and the GSO-6 in the video are right around .019-.020" behind the edge. The smaller EDC-4s are roughly .016"-.017" BTE. All edges were sharpened to 20° per side.
Excellent video, very informative.
So, how does the K890 compare to MagnaCut when used in a larger knife like the 5.1? What happens when you use it as a pry bar or with twisting / torsional motions? Which would snap first? Which tip would break off / deform first if stuck in wood and twisted?
How does K890 compare to MagnaCut in the corrosion / “stainless” dept?
Are you going to offer the 5.1 in K890?
K890, at least in my opinion, is more akin to an improved 3V. It is a non stainless tool steel grade, with excellent toughness, high compressive strength, and relatively high abrasion resistance. The result is a cutting tool with very high functional toughness, that also resists deformation and has excellent edge holding. As far as your other questions, we have weather testing started and we can certainly do more comparative tests as we have time!
Magna-Cut is better in all ways.
@@zdenekbart That is factually inaccurate. Magnacut is great and offers higher corrosion resistance but K890 has higher toughness (resistance to impact fracturing) and higher compressive strength, so it will resist deformation better. The differences are clear in the video. Those values, along with the good abrasion resistance properties means it will also hold a sharper edge for longer. Being a more homogenous 3rd generation particle steel means K890 will also have more consistent performance across a production run, just due to the higher steel cleanliness. You can check out our video on steel quality and why it matters for more information on some of that. It's just material science, so we're here to bring some light to the darkness on all of this. We have no dog in this fight except wanting the best possible tools for everyone. -Guy
If you are going to refine the nail chopping process, and I really hope you do, then I would build a fixed hammer kind of situation along with the blade holder you've mentioned and of course everything attached to an even plate or base. Then all the side to side tolerances could be minimized for future tests.
Keep up the great work!
K890 or Elmax? Not sure which would be better
Bohler K890 is a great non stainless tool steel, that has excellent functional toughness and edge holding. It can support a very efficient edge. Uddeholm Elmax is a great stainless grade. Being higher in alloy, it doesn't have the same level of shock resistance as Bohler K890 but it is still plenty tough for a user knife and holds a great edge. Both are very fine grained and get scary sharp.
EXCELLENT tests Guy!
Next time demonstrate the edge durability by hammering bone, we all know how tough bone is and it would be a more practical test for outdoor use knives!
Can we maybe find something with similar properties that is a known, repeatable standard?
@@Surviveknives
I just finished watching your latest 3 videos, very impressive Guy!
What knives are you making with the K890?
1:13:45 bm get heat treated at Stack Metallurgy and their hardness aim is 62 to 64rc. Often tested at 62.8-64, but some may be less. Protocol as listed on Crucible. There are some more advanced protocols for m4, but bm dont use them. 4v is a better for hard use than m4.
The geometry of that one is thin. Not for hard use in the least.
Did I hear these knives all have eleven degree per side edge bevels ? Or was that a different video I watched previously? Cause that’s awesome performance. Well done and great research.
Yes, all of the knives we will be offering with a Scandi style grind will have a geometry of 11° per side. We will explain more about that in our upcoming tabletop evaluation of the beautiful GSO-4.5 Bushcraft offered in the Scandi grind.
When will magnacut GSO 4.5s ship? Placed my order over a year ago.
We're getting caught up quickly. GSO-4.5s are working through finish grinding right now. We'll have a more thorough update shortly. The progress has been tremendous now that we're all settled in back here in PA, so we're excited to shared lots of updates, that are quickly ending with shipping labels and smiling faces.
Are the new 4.7's in 3v going be be Delta HT protocol?
Yes indeed!
Will the GSO 3.0 and EDC4 3v be made with the delta protocol?
What models and at what point in the orders moving forward will go back to utilizing Delta 3V?
We're discussing that right now. We have some things to work out on our end as far as workflow but we should be getting back to that standard very soon. Small, tightly controlled batches will be critical. That 1st gen material doesn't like the stress of the Delta handling, which causes some additional processing challenges. Being 3rd gen microclean materials, K890, M390 and Elmax are already designed to handle that type of processing, so the workflow is much smoother.
@@Surviveknives I'm really looking forward to the weather testing. I like the looks of the performance of K890, but I'm in TX, and the humidity and sweat worries me. 3V has been okay as long as I keep it clean and dry. Standard carbon steels like 1095 and the like don't hold up well for me.
If there's a point get to it. I know you like to hear yourself talk bus spare us all the unnecessary details.
We did a shorter overview, explaining what we learned about each knife. The testing was done to learn more about how tool & die values realistically translate to user knife performance. I understand this wasn't mainstream content, it wasn't for everybody, but it did help a lot of folks better understand knife steels through this abusive visual demonstration.
Please know this is just me, I'm detail oriented. I don't do this because I like to hear myself talk. Most days what I would like to be doing is hiking or exploring something, not making TH-cam content or working every day of the week in a factory.
th-cam.com/video/vSn0a3uGXno/w-d-xo.htmlfeature=shared