Limits of Maxamet Steel - An Edge Too Far?

[@CedricAda]

I am slowly getting better. I have the flu currently. This video was filmed about 9 days ago.

[@starkparker16]

May your health strop easily to a fine edge soon.

[@wtinnen]

That's exactly what my PM2 in 52100 looked like after I sharpened it with my KME, except mine happened while on the sharpener and was actually shredding off the steel in little micro wires. Spyderco told me it was because you can't use diamond stones on 52100. Not sure if I buy that story.

[@don0giorgio]

Get better bro! Glad youre back doing these videos

[@ExploretheMallee]

The t-shirt 👌

[@darrenkirk6576]

It would be interesting to see (with Gabes permission)... if you were to put your own edge on that maxamet mule.. and retest it.. see if it is infact his edge style... or a "burnt edge".... anyway.. keep em coming champ... 👍😉

[@tacticalcenter8658]

I've had maxamet since the mule released and even got a para3 maxamet. I could have told you a dual grit wouldn't work. But especially reading the science of sharps blog on what dual grit is doing to the apex. Its also particular with sharpening technique and or the type of diamond stones. The mule seems to sharpen easier than the mass production stuff. But alas dual grit is not for massive carbide content and give or take 70hrc.

[@rustyminer]

You do great work, don't let anyone tell you different. Your tests may not be scientific, but they're a really good comparison for the general knife community. Thank you for doing the videos

[@homeslicesharpening]

Great work Pete. We have to let the facts stand as they are. I sharpened this before the scienceofsharp article was published, so I definitely relied on faulty ideas of the apex shape and the mechanics of it. We just did not know it was the burr! I reckon this will launch me into quite the investigation of the limits of Maxamet and whether dual grit will or will not work on such a hard steel. Thanks for doing the test! You rock.

[@vikeskie]

any updates?

[@homeslicesharpening]

@@vikeskie In my testing, Maxamet did not take a good dual grit edge (I think the apex sheared off when I applied the fine stone - too hard and weakened by the coarse stone): kzbin.info/www/bejne/gai9dIawn5yjhLs It did a little better, but not great with an experimental edge I tried to expose carbides intentionally on: kzbin.info/www/bejne/g2fUiolnbpp6aLM And it did REALLY well with a 250 grit diamond edge stropped on flat denim with Mother's Mag: kzbin.info/www/bejne/faLJdaSKlqlrjrc This mule with the last (most successful) edge is currently with Pete, awaiting testing. Thanks for asking!

[@vikeskie]

@@homeslicesharpening thank you for your response! looking for an M4 folder now, it’s slim pickings 😭

[@homeslicesharpening]

@@vikeskie Yeah bro - unfortunately M4 is not trendy atm. I think that anything with medium-high toughness and some decent carbides will do the trick though. I just think Spyderco Maxamet is a little too glassy at 67-68 HRC. To be honest, I've had the best performance improvement of all with MagnaCut, but I'm sure CruWear would also rock & roll with dual grit edge. Check out the video below for details: kzbin.info/www/bejne/imLaaHyHeZipqLM I'm fairly confident Rex45, K390, 10V, or Vanadis8 would take an absolutely gnarly awesome dual grit edge too. Most of your highly ductile/tough steels also see a pretty decent improvement, and I know 14C28N, NitroV, 4V, and 3V take a good dual grit edge. I'd assume LC200N would as well. You're not gonna get the edge holding of the high carbide steels, but you'll see big gains considering their normal performance. M4 is really solid though, so impressive for one of the first CPM steels ever created. Interestingly steels like S30V seem to struggle to take a good dual grit edge for whatever reason. Not sure about S90V, S110V, etc... Gotta do more testing. There you go, haha, all the information you didn't ask for. Cheers.

[@TimJohnson-x1o]

@@homeslicesharpening rex45 is a VERY over rated blade steel. not good. best blade steels. 52100. aebl. xhp. zdp189 if you want to avoid vanadium. otherwise. cruwear, 3v, 4v, m4, k390/10v. all in order of most tough to most abrasion resistant. I don't trust magnacut.

[@econrey]

Hell yea, I didn’t want to sleep yet anyways!

[@aaronkahn-bork1120]

Me, for hours

[@greekveteran2715]

80crv2, 52100, 3V, 4V and Vanadis 4 Extra, are the TOP 5 steels, that I would suggest for outdoors use fixed blades.

[@Bearded_Tattooed_Guy]

5:04 .."tailored hate-treatment"...? Just like my ex-wife, then?

[@willydstyle]

Try putting a more traditional edge on the same knife and see how it performs. Based on the article you linked I would guess that the triangular burr formed broke off because maxamet is relatively brittle compared to M4.

[@John..18]

Shame we haven't got Cliff Stamp to explain what happened here,,,,,, rip...

[@joi777]

he is dead? when?!

[@John..18]

@@joi777 Couple of weeks ago,,,

[@Julius314159]

That is terrible terrible news. What a loss to the knife nerd community. ☹

[@anderslandgren6745]

What??!!??

[@BaconPretzel]

Love the shirt, I have myself a Bruz Key chain.

[@jameshealy4594]

Art!

[@ArikGST]

I`ve had something like that happen with S90V when going to a fairly extreme angle (12°ps high polish), it just kinda went meh and crumbled away xD

[@michaelshuey1614]

Bless you my son. Thou art ever welcome on my IPad screen. Thy mouth runneth over and my ear hangs on every word. But ya, my MAXAMET Spyderco knives are dear to me and, as a result, I never use them. I’ve got the diamond stones and an Edge Pro system to sharpen them but somewhere along the line they’ve become too precious to use. My K-390’s are positively abused. I don’t know man…

[@marcelhoffmann6843]

@Patrick Henry „not using them is abuse” mmhhhyaaa word! but you will be easy on it when you love it, but you also have to treat it as intended, it’s a hard balance :) but if you keep it in the closet you can’t enjoy the power of the steel, and marks of usage are marks of the knives “life” so dare you, knife’s calling :)

[@Owieczkin]

Lets go one step further: you have to use your knives to master their features ;D. Finding the right edge angle and sharpening technique, careful cutting to prolong edge retention. We all know you want this ;D

[@michaelshuey1614]

@Patrick Henry How on God's green earth did you feel compelled to give unsolicited advice concerning the use of my Maxamet blades? Was I communicating with you? Regardless of your blunder, is not the abuse of my K-390's good enough for the time being? Please send a weekly itinerary to my secretary delineating the days and times for which I am to carry and use my various knives. Please indicate pocket vs belt EDC and which particular brand. The following blade steels are in my possession: Maxamet, Rex-121, Rex 45, CPM-3V, CPM-4V, K-390, M-390, CPM-154, Cru-Wear, Z-Wear, ZDP-189, CTS-XHP, AEB-L, A2, D2, O1, 1095 Cro Van, N-690, Vanax, VG-10, and ABC-123.

[@marcelhoffmann6843]

@Patrick Henry so! now you humble have to acknowledge, that: he has a secretary with an iPad, he will decide who is talking to him in a comment and which content is appropriate, and that’s important! he have the Longest! list of power steels from the knife nerds book in possession don’t aggravate, he may accidentally cut herself while karening *zwinkersmiley*

[@michaelshuey1614]

@Patrick Henry That's cute. I ask you to send an itinerary to my secretary and therefore my "knickers are in a twist". You tell me it's silly not to use my Maxamet but your knickers are somehow not in a twist? Weird. You must be special. What should I do with the $300.00 dress shoes that my wife bought me? I never wear those. Is that shoe abuse? Please, this is your stage now, regale us with your acumen and wit. That's how the internet works. It tips in favor of the guy who gives unsolicited advice but begs innocence if someone asks him "wtf?".

[@cashdingo6386]

Mules are dope! I bought an lc200n one and it always felt like a fixed blade tenacious to me.

[@archivist17]

Really intriguing outcome! Much food for thought.

[@mostmuscular619]

Love my Sage 1 in Maxamet. However when I see this happen to Maxamet, slightly discouraging.

[@mmikee407]

IMHO, best Maxamet knife among the available 5 knives is Sage 1 hands down. You can’t go wrong with it. My second favourite is the pm2. The remaining 3 are OK but not as distinguished.

[@gabeeg]

Proven, Maxamet is absolutely useless! if you have any knives in this stuff....throw them away ASAP (PS. I provide a free knife disposal service, please send your Maxamet knives to me and I will dispose of them for you for free)

[@realbroggo]

Really good vid. Nice to knock a super steel halo off occasionally to remind us all that there's more to a blade than steel. (ie. blade = steel + heat treat + edge + etc...) Too many get hung up on just the steel and assume all good. Regardless, done right, Maxamet is great steel where edge retention is the priority and you don't need to resharpen in the field.

[@georgeyoung4292]

thats called chipping caused by very bad edge type!!! To milk the Maxamet edge to max , just take it to 800-1000# and strop the burr off and make it 17° per side..

[@gw9189]

Thanks for giving me a reason to buy a new Spyderco

[@ssunfish]

Most accessible edge holding how does it compare to Sandrin knives Tungsten Carbide?

[@KingNuma.k82]

So my question is cru-wear vs maxamet? Where would cru-wear stand?

[@alphaneuron9045]

I may be a little late to the dual grit sharpening concept, but have you tried maxamet a second time? I just recently saw your magnacut dual grit sharpening. Impressive. This is worth following up.

[@snakehead324]

Anyone else curious how Z-Max compares to maxamet?

[@CNYKnifeNerd]

I've had a Rex 86 (z-max analog) rebladed Spyderco Q-Ball for the last year or so. 69.5 HRC. It sharpens harder, and doesn't hold an edge as long as Maxamet but the differences are absolutely minimal and I would never have noticed any difference at all if I wasnt hyper focused in looking for one. I haven't done any formal testing, as I value the long term use of my elbow and shoulder, but I would basically guarantee edge retention within 5% of Maxamet. It took literally sharpening them side by side to even notice a difference, and really it was just a "glassier" feeling with a tiny bit less feedback. Someone else doing the same experiment with the same blades may find no difference, or even the opposite since the difference is so small and, ultimately, subjective. The Maxamet I'm comparing it to is in a Manix 2, and hasn't been HRC tested. I'm thinking the sharpening difference can probably be attributed to a slightly higher HRC in the Rex 86. I'm glad I have both of them, but I never use them. Once I finally got a vanax folder in a usable blade length I haven't used much else, though.

[@airpaprika]

These days, I am all into high carbon steels. O1, A2... that sort of thing. I guess I am getting old.

[@Owieczkin]

Making a choice based on your personal experience is called: style ;)

[@airpaprika]

@Patrick Henry It is not about romance at all with me. I forgot to mention 52100 which actually started me with high carbon steels. I have two kitchen knives hand forged by a local knife maker. Man... those things get extremely sharp, incredibly easy. I was sold.

[@jameshealy4594]

@@airpaprika I love 52100 customs, carbon steel in general takes a stupidly sharp edge very easily and loves being stropped which helps me too.

[@airpaprika]

@@jameshealy4594 For certain applications, fast and easy sharpening is a must. Probably not for EDC, but I can't be bothered. My blurple Spyderco PM2 in CPM110V always feels a bit dull.

[@jameshealy4594]

@@airpaprika I've heard they do, but then cut very well on harder material (say, not hair splitting but it will murder cardboard forever)? I carry a bunch of things but my 10 year old S30V PM2 is always looking jealously at the blurple model despite being a great steel in it's own right. It doesn't help that I've personally moved on significantly since buying that digicam variant...

[@bergknivesandsharpening8014]

Hi Pete! Can i send you a knife i made? Some tests are on my channel

[@kityuen9465]

Thanks Petey for the vid on Maxamet! Just bought a PM2 in this steel.

[@mmikee407]

You cannot get sage 5 in Maxamet 0:55 to 1:01. It’s not existing on the 🌍. Probably you meant sage1. I wish with all my heart Spyderco will make sage 5 in Maxamet. Will be an absolute hit.

[@jabokd574]

You got your wish, Sage 5 in maxamet is available at a few retailers right now.

[@BushCampingTools]

All great mate but of course one can make stuff rom these steels but i the heat treatment is off, it may as well be made out of type 304 LOL! Given heat treatment for these higher end steels really is a science and not some backyard art to achieve the right grain structure etc. Next time, just say "electron micrographs" LOL , from one ex electron microscopist LOL! Great video as always, BTW what wood is that chopping block u are cutting the rope on? RU in lockdown now in ur area?

[@sstein49]

Maybe Gabe will send a Vibranium duel edge knife when he gets his Adamantium sharpening stones 😎 Is saw brown bears maxamet break down the same way In one of his sharpening videos ( entire blade broke and chipped while being sharpen) maybe maxamet is meant for 20* + because of its brittleness

[@MegaChile96]

Sick shirt, have a similar one

[@profesorEDC]

Glad to learn you are feeling better Pete. Interesting results, I would agree with you that it was due to the dual grit sharpening. Guess we'll have to wait and see feedback from Gabe. Thanks Pete, always a pleasure 😁👍

[@homeslicesharpening]

Haha! I’m on it. Will post a response soon. I’m currently overhauling all my sharpening testing to start a new series experimenting with dual grit with the new information we now know. Bummer of a test though. It underperformed the burnt WorkSharp Maxamet Edge, lol. A good reason for me to stay humble 😅

[@profesorEDC]

@@homeslicesharpening I wouldn't say a bummer, Gabe. I think we might overlook many aspects of steels and just take for granted that though similar, they have their particular differences. And it's great to see them. Thanks Pete, thanks Gabe.😊👋

[@HanlonRazor]

To be honest, this type of edge doesn’t make sense.

[@Steve_G88]

please explain that t-shirt lol

[@Pjotr1982]

Someone is rotten in spyderco 🤔

[@jameshealy4594]

If I wasn't a patron already that shirt would have hurtled me over the line. 👍

[@jkn2k]

So isn't good for EDC ? Can't hold an accidental drop?

[@jjjoooojjj]

The first time I've dropped it I chipped it ..

[@barkingspider2007]

Chippy, Chippy, Chippy, Generally sharpens out after 2-3 times on the stone. When a maxamet knife chips out, I run the edge on a stone at 90 degrees to remove the factory edge and root of the problem. Most of the time the problem is solved. Thanks for the video. 😎👍

[@sabotagesavant5277]

Glad you got out with the family for the weekend. Been wanting to see another cut test. Most welcome.

[@HalfmoonForge]

Science has gone too far this time.

[@dombond6515]

What a result

[@experienceprecision5406]

S30v is the pinical of user knife steel. Holds a edge forever and you can sharpen it without having a masters in physics. I love CPM 20V but that's only because my dad is a knife maker and can sharpen it for me.

[@DullPoints]

WHAT A TWIST-ed rope.

[@bahjinelson3986]

I like those mule knives and that handle looks fantastic!

[@jeffhicks8428]

the day backyard "science" discovers there's more "edge retention" than just abrasive resistance. Turns out edge failure isn't a great way to "retain" the edge. I guess there's more to "edge retention" than just "edge retention"

[@A.J.Collins]

1:02 You mentioned a Sage 5 in Maxamet, is Spyderco going to release the Sage 5 in that steel? (I have the Sage 1 in Maxamet and love it.)

[@petergalione1414]

Pretty sure he meant the Sage 1. Hope I’m wrong though. That would be awesome!

[@helmutshotthesheriff1942]

A Sage 5 in Maxamet🤩😍🤩 I dream about it too !

[@jaysgood10]

Pretty sure it’s the sage 2 in maxamet and liner lock. I have one.

[@A.J.Collins]

@@jaysgood10 The Sage 2 is the one with the Reeve integral lock while the Sage 1 is the liner lock variety. (Sage 1 is the model currently offered in Maxamet.)

[@jaysgood10]

Sage 1 yes.

[@_BLANK_BLANK]

When I see maxamet, I click.

[@shawnpepin7890]

Hey buddy... I would love to see a video on bohler k720 done by joker... hardened to like 63-65 Rockwell...

[@jtallday31]

Is your shoulder ready for the 15v mule?

[@KINGACE9]

He did a test on 15v a month before your posted comment.

[@Wolf_K]

I have two knives in Maxamet (PM2/Native 5). I reprofiled both to blend the primary into the apex; essentially removing the secondary bevel dramatically thins the behind the edge thickness to negligible which increases cutting performance and reduces force on the apex when cutting, which also increases apex stability. Then I add a micro bevel. The Micro bevel is so small you can’t see it and it’s the only bevel in the blade stock. I’m running them both at around 12-14° per side. Once I got rid of the factory edges, which are always burnt to some degree, they are quite stable and great cutters. I do this to all my knives as to me factory blades are far too thick behind the edge. Maxamet is still tougher than S110V and so it’s not as fragile as people think. Freehand sharpening/reprofiling is no problem either. Just use Atoma/DMT and don’t use extreme force. It sharpens faster than S110V.

[@oscr_zen]

whats with that magnacut steel, worth checking out all the trifecta of properties, stainless, edge holding and toughness, Australian testing style

[@darshankumardave7485]

What is the progression used to sharpen it. If it's not diamonds all the way, Deburring would be very difficult. Science of sharp blog has already observed that Deburring is great challenge with dual grit approach.

[@rtdc5662]

"Backyard" science is the only science that matters in the real world. "Real" science is completely corrupted by money, politics, and corny ass TV shows. Keep up the excellent work Pete!

[@matusknives]

I recall seeing something like that happening during sharpening to Michael Christy in one of is videos (not 100% sure it was Maxamet or some of its peers). I guess here the blade was pre-damaged during sharpening and it broke off during cutting.

[@isildurelendurion1822]

My bitch gripe complaint is that benenchmade excellently coats their high end carbon steels like the cruwear mini adamad or the cpm m4 bail out. If spyderco took maxamet and gave it a similar coated edge. we would all be willing to pay 25 plus for that

[@barkingspider2007]

Pete in full geek mode... I needed a good chuckle, life is way to serious right now... Thank you very much for the video.

[@joerg-michajahn4963]

I seem to remember grumbles on the interweb a while back (2019?) where people complained they could not sharpen Maxamet because it would flake off at the edge. Looked like what you show here. Which made me stay away, I am just too pedestrian when it comes to sharpening my knives.

[@stephenbarone4053]

Hey Pete, are you into Flying Nun Records? What bands? It’s the only stuff I listen to these days. Those kiwis know how to rock.

[@krustysurfer]

Very good review of that steel and its properties as well as its limitations I was thinking about getting a Maxamet blade at some point but for nowI'm going to see how my 20 CV Kershaw link

[@cherrywoodbladeworks8044]

The theory behind the high performance of these edges is based on the coarse stone creating a large acute burr that effectively becomes your tertiary bevel. This correlates well with your 'to the max' testing where you (like others) proved that acute edges last longer. So just go thinner people :))

[@Nudel-nc1cp]

Even before watching the whole video I knew it gonna hurt bad :D Thanks for your commitment Pete.

[@harrisquicksilver6595]

Love ur videos and ur point of view, thanks so much Cedric

[@scottb.0185]

Nice Bruz shirt Pete! Looks like mine?

[@ericferguson9989]

Maxamet sounds like the name of an MMA fighter.

[@kush662]

I think we have got to a maturity level in steel where we can start from steels being completely rust-proof and then go on to compare their edge retention and toughness. I think this way it’s easier to balance 2 aspects(hardness and toughness). Good examples, H1, LC200N, and Vanax. Yes the price is high because the demand is low. I am sure they can get cheap when market is competitive.

[@oscr_zen]

I have 3crmov kitchen knife, top that

[@jaredappleseed7037]

I thought the mule was made in Colorado? 🤔🤷

[@jenkinsmig]

Welcome back Pete, this is the shiznick I subscribed to. Awesome content

[@ashsmall8103]

do a video on your top 7 favourite fixed blade steels and try test out cpm magmacut

[@hownowbrowntrouttasmania7389]

looked like a long pic has been removed.

[@GuideMyFeet]

Yeah but you also gotta remember how much of a pain in the ass it is to sharpen "higher grade steels." Maxamet is maxamet is maxamet, all day won't change, edge retention is really good steel, and by the way check your steels again, it seems like you don't know what you are talking about with some of this stuff.

[@stevendalton7686]

Delighted to have content while you convalesce.

[@SurvivalSpec]

I have a Native 5 lightweight in Maxamet and haven’t sharpened it yet

[@bryaninphnx]

Where in Australia do you live?

[@blueswan2175]

great job pedro, its still a spectacular steel-just great experiences on my end never any hiccups

[@racebiketuner]

You're not alone in this experience.

[@wadejensen3301]

Interesting outcome....I will stand by for the hypothesis to begin!

[@wadejensen3301]

Oh I forgot to add.....Bruzzzzzz

[@fortyeightfiend]

Great video! Thanks for taking the time to do these!

[@MrSpenceju]

great video! hope you feel better!

[@DavidNefelimSlayer]

Let the air out of that balloon.

[@alex_8-D]

Bruz

[@Stalkeroioi]

Love pun in thumbnail

[@randallkelley3599]

That was a great video, stinkin’ good...

[@Cameron_OKG]

Maybe edge fatigue?

[@BradGryphonn]

Bruz! That is all...

[@oddsavage]

I think the rope test is a really good way to test steels.

[@tonyhoodlass1846]

Maxamet is Great Steel

[@gw9189]

Glad you’re doing better and going to be putting out more content!

[@_BLANK_BLANK]

There's a famous Japanese knife maker that is well known for the dual grit edge. Enough so that people call it a (his name) edge [I can't remember his name at the moment 😅]

[@wupwop]

Heck yeah

[@trentsapp731]

I tried the dual grit on my para 3 maxamet, the edge got really fine chips along the edge. It is a first gen of the type and early on in my first few edges it was happening frequently. I have since sharpened it to a1K grit and it's definitely better. My newer pm2 maxamet is definitely a better version of this steel, I may try the dual grit on it.

[@tacticalcenter8658]

Dual grit won't work with this steel. Its around 70hrc and filled to the brim with rocks. Its not a steel that has much elasticity. If you watch the video where he explains how dual grit works, you could imagine it won't work with this composition. Also your maxamet on the para is fine. The steel is just picky about how you sharpen it and with what you sharpen it with. Big brown bear has done a few videos on the subject.

[@homeslicesharpening]

Yeah - I am currently outvoted 2 to one by Pete and Dr. Todd Simpson. I guess 3 to one counting you, TacticalCenter haha! They think it’s too hard and carbidey for dual grit to work, I think it might be possible if you experimented with different methods and gear. We’ll see. This test is not promising... Sorry to hear your experience was not positive Trent. If I find any ways of improving edge life, or discover dual grit doesn’t work on Maxamet, I’ll let you know.

[@trentsapp731]

@@homeslicesharpening I think I'll try it out on some lc200n and H1 next. I understand that maxamet is full of carbide, so is S110v .. I have observed so many people using a toothy edge on these steels instead of a progression of finer grit to use these carbides like the teeth on a saw blade. If not for experience empirically, how will I know this method won't work? I sharpen something just about every night, it's what I do to avoid going to sleep while watching KZbin videos. I'm getting old and I bust ass all day! I'll try to keep track of some results maybe rex45 would be interesting, hard and stable with less carbide content. Off to work i go, I've finished my coffee.

[@homeslicesharpening]

​@@trentsapp731 Indeed. H1 could be interesting dual grit - Dr. Todd Simpson says that there's a small chance that the dual grit edge might be work hardened by the movement of the burr back and forth. Guys have been trying to give H1 some additional precipitation hardening for ages with little success. It may be a shining moment for dual grit (as this test was not, lol). Take care bro.

[@kymcopyriot9776]

Great stuff Pete! I do a lot of sharpening tungsten and now and then it simply flakes because it’s hard, brittle and not very ductile. Perhaps Maxamet shares some of those qualities? Hope you enjoyed your little holiday (Monarto?) Keep up the great work!

[@bryaninphnx]

Still can never get over that it’s winter down there 😂

[@jameshealy4594]

It was below 10c today, that's almost a war crime! 😅

[@OsamaBinDarrel]

@@jameshealy4594 you poor guys are upsidedown and backwards 🤦‍♂️ I didn't know Australia had a "winter" with actual cold weather

[@jameshealy4594]

@@OsamaBinDarrel Depends on your perspective, I live near Melbourne at about 180m above sea level and I've seen snow fall at my house twice in 30 years, neither time did it stay on the ground for more than 15 minutes. But there's many nights it gets down to -5c or so.

[@ncsEsper]

First!!! Mate!

[@stevenrobertson6656]

Congratulations Sir

[@cloVerSolo]

not a news to me, my 2nd edge of rex45 blade chipped against cardboard. deeply over-burnt edges just suck. or maybe spyderco has been on a wrong way to the balance of hardness and toughness.

[@machinaexmente2729]

"However, since this acute triangular “burr” is so thick and its steel undamaged, it does not fold or tear off with use." ... Or maybe it does 😆😆

[@Zaque-TV]

Yeah the harder steels probably don't dual grit well. The peaks left by the rough side of the apex are probably much more brittle than on, let's say, a tougher steel. A lot of them broke off leaving a rather rough toothy edge.

[@jamesortiz5388]

Hi

[@gregcrist9648]

Maxamet wouldn’t exist as a blade steel were it not for the knife community’s obsession with edge retention above all else. It offers poor rust resistance and almost non-existent toughness.

[@iwilleaturbabies]

An interesting result considering the effects it had on M4 and M390. Perhaps this technique doesn't do well with high carbide/high hardness steels? Your cutting board could also be a factor, as a method of removing a difficult burr is to actually run the edge along a wooden block, so running the edge into the cutting board could definitely have pulled off that burr.