You Won't Believe How Long this Magnacut Edge Lasted
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- čas přidán 4. 02. 2023
- cedric-ada-store.creator-spri...
Good gravy its bricky on things
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1550 Freaking Cuts!?!? Holy cow, thanks for your dedication Pete - sorry for your hand & shoulder. Basic info on this edge below:
17 dps Dual Grit edge - hand sharpened on flat stones, 250 grit diamond plate (eg DMT) on one side, 6000 grit King Water Stone on the other. Stropped 3 passes per side on flat denim loaded with Mother’s Mag Polish. More info in the reply section of this comment.
I raised a burr at each grit, then finished honing with gentle alternating edge-trailing strokes on the finishing stones (250 grit & 6K King). Strop was a pair of jeans laid flat on a wood block loaded with Mother’s Mag & Aluminum polish (from a car store).
I got this edge to perform better through better burr minimization techniques. Unfortunately I am home in the US and don’t have any gear to shoot a tutorial for this specific edge now, but I will! Shooting to have a tutorial up at the beginning of March when I return to NZ.
In the mean time, I’ll shoot a response video to this test, as well as an update on what I’ve learned about dual grit.
This is how this knife/edge performed in my Death Rope testing:
czcams.com/video/T1w7IQD3vrQ/video.html
Thanks for the info, I was suspecting the angle to be lower than 17°, but if it's 17° then it's even more impressive.
Can I say - what a fantastic edge!! I always love a bit of experimentation with angles and grits and such just to see what results I can get. Some great info for me to take a closer look at. Have a great day.
The guys at the hardware store must think you’re the most prolific uncaught kidnapper in Oz history.
😂
🤣😂🤣
Very observant of you 👌🏻🤣🤣
Or that You found a new fancy drug for replacing cannabis? Your fatigue after a hefty dose of sisal rope makes me wonder......
As for differently angled cutting edges. I noticed something similar years ago with scissors. When I worked in the carpet mill at 19 years old I originally had our maintenance department sharpen my scissors, but being the rugged young man I was back then I had to learn myself. And so I did some experimenting and discovered that unless the edge was blurred it was better to leave the flat semi serrated edge alone and sharpen the steeper angled edge I had some that would slice through carpet like butter. Now granted this was all done with a file and all that, but this was in the mid 90s and all I knew was what the maintenance guys told me.
Still a little shook from this result. Best read on the average hardness of these is a comment from Sal on a forum saying between 62 - 63 hrc. It musy just be the edge. What a result, nonetheless. The mind boggles.
I 3d printed a knock-off Apex sharpener last year. All together, it was about $65 for the sharpener and 35 for the diamond stones. The set came with 400, 500, and 600. I used shoe goo to attach a thin piece of leather to the 500 for a strop. After working my way up to 3k, then stropping, all at 17°, I'm able to hold a sheet of paper at the corner with the long edge of the paper at the top and slowly pass the edge across the pages face. With as much effort as you were cutting at 1:40, it passes through the face of the page. I've been free hand sharpening knives since I was 11, and I've never come close to what that style sharpener can do.
Ohhhh but Pete my friend, there is a new Mule team already released that is made from Bohler M398 hahahaha I would love to see you gwt yourself one of those in for testing and try this particular edge on it 😋🤣
Thanks Pete. Big Brown Bear tested some MagnaCut Mules at 62.0 and 62.9 HRC. FYI
czcams.com/video/BcDcyByiTTk/video.html
Cedric Have you ever tested a knife with an Obsidian blade? Curious how it would hold up compared to the ceramic
Mr. Neighbor is on to something...... His magnacut formulation has captured the best elements of metallurgy for edge resiliency.
Well done!
And well done test thanks for hanging on 😉 aloha
I've said it since a week after getting my two MC mules... spyderco MC has out cut even the custom MC I have tested. One of my mules poked at 63.8 and the other 63.5hrc and that's on a large commercial grade 60,000 dollar Rockwell tester so very accurate results.
Lacey IIRC Sal and Shawn's Mules tested at 62 but I'd need to go back and look on forum.
What do they do differently than Larrin's protocols that he provides? I know that Carrothers changes his protocol to soak a little longer and aims for 63 and it provided more toughness in the nail cut testing. Still not as good as delta 3v protocol. He didn't test edge retention obviously.
What does your custom MC poke at?
@@tacticalcenter8658 mc is stainless steel .
If there were knife marathons, this man would win everytime.
Thanks for taking a huge hit for the team. Greatly appreciated it. 🙏🙏
Can't thank you enough, Pete. You're a real-live hero!
I agree. Going 12 rounds with magnacut sharpened to this extent is a heroic undertaking
Holy smokes very nice result! Someone get this man an ice pack for his shoulder!
🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯. Combine a great steel, with a great heat treat with a great edge and BOOM - you get this type of magic!! Sharp blades all.
Pete, thank you for your continued laborious efforts.. Really sheds light on the steels and their place in our Knife World.
KnifeMaker 47 years in the craft, now retired
I friggin love the time lapse music. It just instantly triggers heavy nostalgia for me, it sounds like a 90s action movie montage song.
What song is that?
Somebody make this man a knife -testing rig! Such as a spring-loaded board you clamp the knife to with a lever you pull to move the board down.
That just proves how tough, and hard magnacut can be. The dual grit edge benefits greatly from a tough steel from what I've gathered and a steel at 64hrc, that tough, AND stainless is insane
Thats correct. Magnacut at 64 rc has the same toughness as AEBL at 64 rc. Except it's got basically double the "edge retention." The name of the game is good toughness at high hardness, fine grain, and therefore edge stability and therefore the knife can be made THIN, and therefore geometry is what cuts. It's not rocket science. Magnacut has less "edge retention" than most other "super steels" even the well balanced ones like say s30v. The reason it does so well on this so called test is it's edge stability, it's too hard to roll and is tougher.
Dual grit makes a lot of sense, it's a micro-serrated edge. if you were to stop the sharpening at a lower grit on each side and look at it under a microscope, you'd see peaks and valleys in the knife edge. Due to the nature of how most knife steels are composed (and this will vary by steel) a good amount of those peaks will be a carbide. When you go over one edge with the finer grit, you will refine the points of the carbides, making them very sharp.
If you just stayed at the low grit you'd get larger carbides; a toothy edge (think small serrations), but they wouldn't have particularly refined points. If you polished both sides, you'd get carbides with very refined points, but they would be small, reducing that serration effect.
By keeping one side rough, you're producing large carbides, maximizing the serration effect, and by polishing one side you're refining the points without reducing the size of the carbides by a considerable degree.
You stated it better than I did.
Amazing results, impressive edge. Looking forward to seeing the Maxamet testing.
Damn....thanks for running this test, awesome results.
I scored a 15 v mule!....that edge is a mind blowing beast! Over 2000 cuts for sure on this steel!!!
Another awesome collab. Can’t believe it beat out Sandrin’s tungsten carbide, that’s pretty badass.
So hyped for some Magnacut knives I have coming. Thanks so much for the information!
Thank gawd for the music upgrade!
PLEASE! No more Nintendo legend of Zelda background music! I'm begging!
Lol.
That test was incredible btw! Well done, as always.
I put the dual edges on my fixed blades after you introduced him to me. That micro burr is awesome.
Yeah it is bro 😎
As advertised is always a good thing . The southern dudes say Magnacut the best , lol . 😊 personally I don’t mind any good heated steel around mid range for edc . This magnacut would be great for someone who has to use a knife in that manner for hours 👍🤓. Good job Dr Larrin Thomas . He has a channel we should all pay homage to .
I'm so glad you put something under the cutting board to stop it from moving around 🔥 as a chef I always use a damp towel underneath but anything that works works 👍✌️😎
Outstanding! As a hobby knife sharpener and half ass metallurgist. I have tried the staggered grit edge. However, I have only done this on lower tier steels to see if it improved the amount of time between sharpening on a 440c and 420hc knifes my friend uses to cut up carrots and the like for an animal rescue facility he has. In 4-5 sharpenings we believe it gets about 25%-30% more useful time. Nothing scientific. Never counted cuts. I have a Tsprof K03 I used my silicone carbide 600/3000.. I stropped ad usual for steels with no vanadium using my own leather strop on aluminum blanks with basic chromium oxide. Ill have to try this on some s90v, M390.. bc that was impressive results. I had herd magnacut had really good edge retention and great corrosion resistance. But that's by far and away running the best results i have found for it. The key seems to be hitting the 63-64 range.. which Spidey dose well.
Respectfully
Everything about this was incredible
Outstanding! I can't wait to try this steel.
Glad to see some non-stick under your chopping board mate. Watching it drift around the table during these cutting tests always looked so frustrating!
Thank you for your service. I have a TR3 in magnacut from protech. I havent gone crazy with it yet but i wonder if its any where close.
Love Bricky! More Bricky😊 great content,cpmMagnacut seems to be a very promising steel. Have 3 native 5 lw’s in it,2 serrated edge and one plain. Thank you for your effort and Bricky 😉
Lionsteel M4 in MAGNACUT at 62hrc.
Knives&tools exclusive
(Ordered myself one)
Be interesting to see how it compares to other magnacut.
1 year in. Are you happy? Thinking about buying one and could use your feedback. Cheers
@michaelmike12
I personally like it.
That being said, the standard M390 version is like 40 cheaper. The magnacut version may have better edge retention, but it's difficult to tell outside of a controlled test. (Both very good) I would just go with the standard M390 version unless you really want magnacut. Magnacut is a bit easier to sharpen.
Thanks 👌🏼
Great content! Thank you for this!! That was a great blade!
Thanks for your sacrifice to make illuminating content for us. Most of your viewers wouldn't need to resharpen that for a couple of years ! Take care of that shoulder, arm & hand !
Pete the song choice for this video was absolutely on point..like our anime hero went from zero to super mega hero training montage..magnacut with the home slice Beasty
Great video. Thanks. I really want some more spyderco folding knives in magnacut.
Thanks for the fast forward footage and your hand cramping dedication. Proof of Spydercos heat treatment proficiency. 👍 😃
I have no words..... 😳🤯
That comment is patently and obviously false.
What a cool result. Main thing I think with these type of edges is that you have to have a steel that does good with a polish and tough enough that the edge doesn't chip during use. Crazy what you can achieve with different angles and edge combinations. Wonder how a chisel grind would do as well. Thanks for the great vid and keep making sharp things fun and enjoyable
Single bevels doesn't hold an edge as well as doubles ones, according to scienceofsharp (or maybe to Larin Thomas' book, don't remember)
Aye! Edge stability, and awesome sharpening ftw!
Your 10V needs to be next 😁
Whhooooohooo! Dis donc! Ça c'est un sacré resultat! Merci pour cette experimentation! Je fonce acheter un magnacut ! 😉
Been waiting for this cut test
Me too!
shoot when I finally have to sharpen my magnacut mako I'll definitely be giving the dual grit method ago. Might give it a go first on a few of my kitchen knives as well.
I just ordered a Pro-Tech Runt in Magnacut, very interested in trying out this new steel.
Wow. That’s very interesting, looking forward to the maxamet result.
Pete’s not
@@Toborobot That’s why I’m a patron :)
first video I've ever seen of yours. The FFVII music took me back to 12 years old real quick
Woah! Gabe's dual grit edge certainly works on some steels. I'm very impressed.
Yeah - the Maxamet and 4V I sent to Pete had wire edges unfortunately. A bit of a lack of edge-ucation on my part (tehee 😅) I have been learning a lot about cleaning up the edge/removing harmful damage, and this confirms some of the stuff I’ve learned.
@@homeslicesharpening and what are you doing to avoid it ?
@@Cleymant well, I had problems with my Venev OCB stones leaving a wire edge because I used them like water stones (raising a palpable burr before moving on).
I went back to my old stones for this edge, but you could keep from getting a wire edge even with Venev’s I just didn’t know how:
Keeping the burr small helps, alternate sides every stroke at the end helps, and stropping on denim rather than leather has actually helped a TON!
Wow. If and/or when you do your own dual grit sharpening, would you consider showing that process on video? This is a game changer, especially if it carries to other steels. Seems you have some experience in this from your intro, but totally a new concept for me. Strong work, as always. A real fan.
I got tired watching you. Effing stellar effort, Pete!
I did a sharp/coarse on my cpm-m4 and I have not had to sharpen it since then
I don't know how you do it. About 10 passes through rope that thick and my shoulder just falls off. Very impressive results. Thanks for doing what you do man.
I need to get a mule, great steels on a great design
I found the ergos to be very lacking on the mules.
the Maggie Serrated Native 5 Salt is available right now!! also really interested to see what they've improved from h1 to the H2!!
Holy moly. Maybe you should think of another way to test the edge retention. That would be better for your shoulder.
Omg that is bonkers edge retention!
Blows my mind!
That’s amazing!!
We need more commentary from Bricky when Pete gets this frustrated.
Top 1 longest lasting twistedsisalropecuttester. A White jacket with much too long sleeves, hands bound behind his back wont stop this guy.
The better super steel becomes, the more you are bound to hate edge testing! Wow! So sorry for your pain bro.
Seriously, a new steel I’m excited to hear about is the CPM 15V that Spyderco and BBB collaborated on. Like Stainless M4?
15v is stainless?
@@tacticalcenter8658 No I did a little test on the pivot area of the blade. It will tarnish with lemon juice.
@@geraldkoth654 I know. It doesn't have enough chromium or anything else to make it stainless. I think the op was confused and meant magnacut.
15v is pretty old steel
IIRC, didn't a dual grit M4 also exhibit a large improvement in the rope test? If so, that suggests the dual grit pays benefits on "tougher" steels...
Holy shit Pete, that's insane.
1550.
Hly fck.
This stabs deeply at my tool steel fetish.
Pete will have the best developed right arm muscles in Australia! 🇦🇺
All Aussies have well developed right arms....
Pretty impressive! Any chance you’ll be reviewing the Creely Folklore soon?
OG testing video lets go !!!!
I have this comical picture in my head of a small mountain of cut sisal rope behind Pete’s house. It slowly grows but with grinds like that the pace of its growth quickens. Then there’s the image of Pete in five years with Popeye-like arms but I won’t go into that…
So much sisal. You will have enough for a sisal wife and a sister sisal wife, right in time for Valentine’s Day ❤
That's insane 🤯
Just searched The Home Slice. Found some videos about pizza reviews.
Anyway, really interested in the polished/ coarse sharpening method. But now I’m hungry.
Hey Paul, I’m Gabe from the Home Slice. Enjoy your pizza, and the sharpening tutorial below 😉
czcams.com/video/FruwVRSmhWA/video.html
The music really makes you feel his fighting spirit
The magnacut mule is 250 and 6000 so what im guessing is one side is sligthly exposing the vanadium carbides and the other finer side is finer thus supporting them more but i might be wrong any thought about this?
Damn....thats just goody!
How’s the RSI coming along then Pete? Would love to see the look on your Physio’s face when you tell them how you buggered your hand, arm and shoulder!
Impressive. Most impressive.👌
Very interesting!
Thanks for making the steel Larrin! This result blew my mind, but was in line with my own testing!
Well, thanks for calculating the composition and talking Crucible into trying it anyway - I suppose you don’t technically make it 😂
Dual grit sharpening seems to benefit from a balance of high toughness and high hardness (probably because the final edge apex is “moved metal” according to the scienceofsharp article) I think that’s why MagnaCut was such an ideal candidate. I suspect that the apex may have been been slightly work-hardened by elastic deformation - I don’t know how else it could outperform Rex121 (nearing 70 Rockwell and like 40% alloy 😅) in an edge test.
Cheers.
"The tale of the Shrinking Sisal"
Death by a thousand cuts!
(epic soundtrack included!)
Like the Final Fantasy music in the final scene :)
Wow, thats nuts! This will probably cause some controversy
I half expected another onion video, 😂 that was epic.
I never did more than 500 cuts in one sitting. when a knife went beyond i set it aside and continued the next day.
Then I found a nicer way to reduce the number of cuts....i use thinner paper to test the edge. 😁
I seem to remember Gerald at outpost76 had two mules averaged 62 HRC but I might be wrong. Was one mule averaged 61.94 HRC
This test made me wonder whether the hardness of the steel or dual grit sharpening method made the difference. I would imaging dual grit sharpening creates a micro serration edge. My second question would be if D2 or 14C28N were harden to 62 -63 HRC, how long these edge would last? Since most of them only harden to 59 - 60 HRC.
Thats the problem. You can heat treat different ways to get an rc number. Ganzo upped their d2 rc to 62 and it didn't help at all. But that's the thing, if they changed the protocol they could get a better microstructure at a lower rc for better performance. Its all about that time and temp. And d2 is not easy to mass produce in reliable consistency. Most d2 performs poorly with random samples doing OK.
Check out a vide called Microstructure matter's.
Gabe sent a knife with dual grit edge to the lab, and it turns out that the magic is about stacking burrs
@@Owieczkin true. And also if you think about it d2 has chunky chromium carbides while 14c28n is going to be much more fine grain. So I'd assume 14c would fold the bur much easier than d2.
@@tacticalcenter8658 sounds like a steel with fine grain and high hardness would have an excellent edge retention. Which explains why Japanese white steel with hardness of 64 - 66 HRC has such good edge retention. Although it is not stainless.
@@vinceLi3096 watch microstructure matters.
Wen sharpening video for HIC elastic ceramic?
Brickard approved
It's funny because I've seen several people saying that MagnaCut doesn't have good enough edge retention in their opinion to be a folding knife. They insist it should be on fixed blades and everyone should be EDC'ing S90V. Your tests have proven otherwise.
When that great idea you had in Bunnings becomes the bane of your existence.
Very impressive results. So many great steels these days..lol. Now if somebody will send you a manix2 in 15V so we can find out how it compares. You need to warm your arm and shoulder up before starting.🔪🔪
Pete, what on earth do you do with all the shredded sisal rope. Is it decent bedding for chickens or just trash?
Maybe you could burn it
That's bonkers.
Maximum effort!
Damn, hope you are taking care of your shoulder man.
Amazing results. How would the tungsten Carbide do with this edge ??
If #Sandrinknives does that it will be insane!
Unfortunately it seems to be too hard - this is Gabe - I invented this particular edge (so to speak) and I have not found a way to replicate it on Tungsten Carbide or Maxamet despite trying many times. The edge is too prone to chipping on the coarse stone, more ductile steels do much better.
It wore out the diamond stones in my work sharp.
Man… I came here expecting dissertations on the carbide structure of maganacut vs other steels as an explanation of why the dual grit method performed so superior to the regular method. :(
Heck of a test. Fascinating result. Do you ever get the feeling that your tests cause ripples through the entire steel industry for years? It sure looks that way to me.
With regular sharpening we try to fully remove burr. Microburr may break and loose edge faster.
With dual grit instead we go the opposite way and force a burr so thick that it doesn't break off and functions as a true edge. Since there's more material to wear off before the edge gets dull it lasts much longer. For it to work you need a steel strong enough to sustain the shape.
Seems to be that magancut is the best all around steel that you can get your hands on currently. In my opinion, magnacut is what S30V was when it first came out..... a real game changer (hate that phrase.. but what else can you even say??).
Holy sheep shit!
I am going to try a dual grit sharpening on my magnacut now. This makes me wonder which of my other steels will respond. I would love if this method had a similar impact on LC200N.
When I got my first "Backpacking knife", I was told 440c was the steel...Then in the 1980's it was 154cm, and then, and then, and then...M-390, then Maxamet, and now MAGNACUT.... Damn it cost's me a lot of green(scratch, bucks, greenbacks, etc)...but I am waiting for the steel from outer space to crash down, and some great maker create the FINAL EDGE......:>)... I guess I gotta go get one of these as soon as Spydieman makes it in the P2....
Hey hoss, if you put a damp cloth under your cutting boards they wont move around on you.
Steel soldier. Ty
I wonder how the excess rope would make as pillow stuffing?
Anyone know the song? Amazing results on the magnacut btw