Alcyone : cutlery de bon alloy
Back from the 2018 Mini Meet in The Netherlands, my freind Nemo had a nice surprise for testing and benching: the Sal Glesser signed Alcyone!
So I have been testing the knife in different conditions so to get familiar with it. The manufacturing is very precise; serious stuff. Its a lightweight heavy duty!
However before that, I did a bit of research on the origin of the chosen name. There are different mythologies about king Ceyx’s spouse: Alcyone. In all cases she ends up being transformed into a kingfisher (1) by pity, (2) as a punishment for a sacreligous stand, (3) to reward her for her courage and love of Ceyx. A hypothisis is that the kingfisher flew far away from earth and became a fixed star in the Bull Taurus Constellation https://bobmoler.wordpress.com/2012/01/24/01232012-ephemeris-the-face-of-the-constellation-taurus-the-hyades/: Alcyone, greenish yellow star and the brightest in the Pleiades star cluster. Finally Alcyone thought to be center of the universe for the Mayan…
Now that we have travelled so far lets land back again for some down to earth experiences.
The idea of this article is to feedback on my experience. For the basic characteristics I found some interesting aricles on the web:
– official description and technical specifications: https://www.spyderco.com/catalog/details/C222GGY/Alcyone-G-10-Grey/1058
– the Americain made CTS BD1 blade alloy: http://knifeinformer.com/discovering-the-best-knife-steel/
The first test I like to do is against something that is both hard and soft: hard on the outside and soft on the inside. Imagine what a really dull knife would do: not get through the outer crust and squish the inside. Yuk!!
So I expect exactly the contrary as a demonstration of success. That is the idea with the first test involving an epiphyte (member of the bromeliads family able to store water in a structure formed by their tightly-overlapping leaf bases). For this test I call the ripe pineapple!
The result is great with minimum liquid escaped once the peeling complete and all pineapple “eyes” are removed.
Another example is the pear test. Here the harder element is inside the softer one: the pip! See how the pip got cut without squishing the pear.
So Alcyone passes both tests!
The next test is a “no going backwards test” over a long distance and observing whether matter builds up (which would be the result of a dulling blade). So for this resistance test I have used honeycombed cardboard over a meter long.
The result is very neat from start to finish both thick exterior and thinner inside making up the alveolus. Somewhat similar in structure: the french baguette and the test was conclusive too!
Cheese or the art of preserving milk…
The idea of Conte cheese was to accompany the bread I had just cut! That with the cork, we enter the realm of the famous “perpetual movement”: reserving oneself of wine, bread or cheese as an excuse to finish the trilogy.
In this case the Conte is one that has aged in good conditions for atleast 20 months in the french Jura as we start to see Tryosin crystals (the white spots). Tryosin is an amino acide that enters in the composition of milk protines. All that to say that the cheese can be moist inside but crumbly near the crust: even more with one aged 30+ months.
With all respect due to the Ceyx’s spouse, Alcyone cut the cheese well!
Finally the Big Sirs: two legs of lamb. Here I focused on working mostly with the tip of the blade to be precise when cutting the meat and removing it from the bones; tagine was excellent! From the mini meet to the big meat!
Approved, Approved, Approved…
My first experience with Massdrop exclusive design was one year ago.
The Falcon has been a surprise in its quality and design and since has been my Spyderco Techno replacement. The Gent is even a better deal !! We are in presence of a real masterpiece in modern cutlery and, pardon my French but I weight my words.
First thing I have noticed is the blade to handle ratio: in a folder, the blade will be most of the time shorther than the handle but with some designers tricks you can give the illusion… It was already the case with the Falcon: we got a real elegant knife despite being short, the blade is perfectly centered, the blade evenly ground, the action is smooth as butter and the edge cut my hairs… WOW !!
The large choil seems to be a Ferrum Forge signature and it is handy for precision cutting. Also when not using it I can hold the handle with 4 fingers. It is much more ergonomic and fonctionnal that my Izulas in that matter.
The lock is similar to the Spyderco PPT. It is a thick pride liner lock made of bead blasted grey titanium. The slabs are G10 with a very nice texture. Attention to details is stunning: quality is at the rendez vous. The lock feels strong and any way your hand is protected by the flipper used a guard and by the choil if you choose to use it. This is a very solid folder.
The blade is exquisitely ground and the edge is thin, razor sharp our of the box.
The opening construction is ultra minimalist and VERY EASY to keep clean !!
I love ultra minimalists design as found on the Spyderco K2 for example.
The spine is gently chanferred for an excellent confort in thumb pushing cuttings.
Something I won’t have to do myself.
Immediatly you want to play with and put the high saber flat ground S35VN blade in its pace. A steel first introduced to me through the Spyderco Native 5.
As a Lady/Gent knife it is small like a jewel.
Non threatening is a must in that kind of EDC knife. But don’t get fooled by its size; this is a real workhorse !
The detent is a little harder than the one of my Falcon or my ZT0562CF but it works and fires every time. It is really smooth and no side play so far. I was not able easily to open the blade without using the flipper.
The deep carry clip is well thought and it makes the knife disappearing in the pocket. EDC is often better in low profile configuration.
So let’s put a little convexing on that baby: Stuff 2, Fallkniven DC4 and leather…
Diamonds are in play for the first round. The thin edge makes it easy to scratch and of course I have scratched it. You can notice the very nice belly on the blade.
But nothing some use and future stropping won’t erase in a “beautility” attempt. The idea is just to bring convex in the middle of the belly.
Leather stropping, razor sharp let try it on my favorite test in ergos and edge: the Bottle Butt !!
As you can see it was an easy cut for that little knife. There is power in this one. The blade is just thick enough to provide a comfortable spine to strongly push through.
The Belly always help for push cutting in hard material.
So far what do we got:
an elegant, non threatening short folder with premium materials (Titanium and S35VN).
It can be deployed and close with one hand. Great balance with its sweet spot just behind the pivot. Great ergos, thin edge and easy to clean ?
This is almost the perfect EDC, worst it the best EDC you can buy for 80 dollars !!
This kind of high quality knife could be the only folder to bring with you anywhere. A great little big knife ready for anything ! Thank you to my friend Dan Sharpe for having introduced me to that little wonder !
Back to trying to get a patina on cruwear after my first attempt.
Because lemon juice is not smelly and we use it a lot in the house, I have tried to let the blade all night in a tissue imbibed.
Tissue seems to be some kind of catalyst as it help to keep a contact between the citric acid and the surface of the blade.
In the morning the tissue was dark!
And you can notice rust starting to form in between strokes of the patina.
Rust is removed with some polishing which keeps the patina.
So here we are now with a kind of camouflage results.
It looks forced but should “mild” with uses but yes you can get a Patina from Cruwear with lemon juice and a night…
Which means if you forget your knife in the sink after making some salad, you can get rust on your Cruwear blade and a very swaggy patina.
This time I have decided since the blade of this Paramillie is thin, to protect it with some gaffer tape.
Same process as usual: diamonds, then ceramic and stropping on leather.
The DC4 of Fallkniven and the Spyderco Double Stuff 2 were used.
I got also an old barber leather I use with some polish.
I use the diamonds to remove the shoulder of the edge to round it a little, this is where you can scratch the blade as the angle used is very shallow.
Once you see the edge is widen, you can switch to tsone and ceramics mainly to smooth the scratches made by the diamonds.
It is very simple and just ask for time and patience.
Cruwear is stropping friendly much less than 52100 though.
Edit of the 24th of September:
More convexing after failing to Patina…
I really do love that short stubby folder which are turned to be my Spyderco Techno replacement.
In term of ergonomy first, the rounded hand, large choil, smooth thick blade spine, all concours to make your hand “at home” when holding it.
This large choil gives a lot of control and force on precise cut need at the start of the edge. It is the exact opposite of an Izula for example when the index finger is blocked behind the guard, here you can whittle with index finger near the piece of wood giving you a lot of accuracy.
This handle also scales the blade up in term of proportions making it a beautiful short knife. Also in the elegance department, the edge feels like the tip of a lance with it spear’s point. Mine has aged beautifully with a gentle sanding on the titanium.
The clip has hold perfectly and is not hurting my palm when holding the knife tight.
The edge has been gently convexed and did not show any chipping or bending after a year of rotation.
So far I am very happy with my #734 and I highy recommend it.
Massdrop is not always offering bargain, especially regarding some famous 1095 steel made American Blades like TOPS, but for their US/China connection they are often great purchase. My friend Dan Sharpe (thanks to Loremicus a young Mangaka from Hong Kong) highly recommends their FF CRUX which turn to be two of his favorite folder.
I will certainly follow his advice at one moment, those folders are a bargain of high quality.
So where do we begin? It must be twenty years . . .
Long story short, it was the beginning of forums on the Internet.
When someone in the tactical new world order of the 90’s named Ernest Emerson was promoting his Tiger Claw… Saying he got that clever idea for a neck knife…
Wait a minute… Ernest invented that ?
Immediately I was reacting on the threads asking questions about that design I already knew from the articles in La Passion des Couteaux. Ernest was bragging he was the inventor of Lagriffe ! Immediately his groupies and especially Kevin “Mad Dog” McClung once king of the forums attacked France, French, our flag, our way of life… McClung was so proud of his lack of knowledge… He even asked one of his friend working in the FBI, a guy named “Hilton” on the forum to buy a Fred Perrin original Lagriffe and write an ugly review about it !! Shame on you “Hilton” you were such a groupie with a brown tongue.
Reading the review nothing was good for Hilton and Emerson was a true American God who give a huge chance to a little Frenchie …
Well I did not know Fred Perrin at that time but I had contacted him some weeks after my lonely war against Mad Dog and his groupies… Fred told me that Ernest had contacted him and was ready to pay royalties.
Well, then we became friends and Fred was visiting me every week to show me his last productions and we have started to write review on Geocities about the knives we loved ! It was a great fun. It was long time before digital photography: I was using my SVHS camera and extracted the frames to get images I could publishes. I was also experimenting animated gif…
So La Griffe was the source of this blog, it was even the wallpaper of our pages.
Here the review back in those early Internet times written by Michael Janich:
“Fred Perrin’s “La Griffe,” (02/1999)
Recently, I had the opportunity to become the lucky owner of two knives made by noted
French knife maker Fred Perrin. Although I hadn’t had any previous exposure to Fred’s
work, I had seen a few articles about him and knew that he was an devoted practitioner of
defensive knifecraft and the Filipino martial arts. Since competency in knife fighting is a
unique (and unfortunately rarely seen) quality among knife makers, I had high
expectations for Fred’s work. I was not disappointed.
The knives I received were two variants of Perrin’s “La Griffe” (meaning “claw” in
French) model. Both knives are single edged and hollow ground on only one side of the
blade. The handles are a unique pistol-grip shape with a large hole at the ricasso. The
smaller of the two knives features wooden handle scales, while the larger is of one-piece
steel construction. Both knives came in well-made adjustable kydex sheaths configured for
neck carry. Also included in the package was a training version of the smaller knife made
from a high-strength fiber-reinforced plastic. Like I said, knife makers who are true knife
fighters look at things a little differently. The inclusion of the trainer immediately
convinced me that Perrin was serious about his work.
Although the Griffe is an unconventional design, its purpose, as well as Perrin’s brilliance,
become apparent as soon as you grip it in your hand. What you notice is that with your
index finger placed through the hole in the ricasso, the knife becomes a natural extension
of your hand. By placing your thumb on the back of the blade, the natural motor skills of
the hand are transferred directly to the blade, allowing you to use it almost instinctively as
a cutting and slashing weapon.
With a subtle shift of the handle, the butt of the knife can be placed directly against the
meaty part of the palm. This suppors the handle firmly and indexes the point with the
knuckles of the fist. A natural punching motion now produces a powerful and accurate
thrust with the point of the blade. With the handle braced in this way, you can generate
tremendous power, and the hole in the blade provides a secure grip for withdrawing the
blade from the target. The hole also allows you to open your hand without dropping the
knife (try that with any other knife!) and provides a great index for a quick draw from the
Speaking of drawing, the curved handle of the Griffe design helps keep the knife flat when
suspended from the neck and provides a great tactile index for the blade edge. Many neck
knives have symmetrical handles that are impossible to orient by tactile sense alone. If the
cord on these knives becomes twisted, you can easily draw the knife with the edge facing
the wrong way. Thanks to its unique design, you can draw and orient the Griffe by feel
Basically, the Griffe design combines the best features of a single-edged boot knife and
push dagger and improves upon them with the unique ricasso hole. In case you’re worried
that the hole will weaken the blade, a close examination of both knives revealed that they
are differentially heat treated. A clear temper line (like the hamon on Japanese swords)
was apparent on both knives, showing that the working part of the knife was substantially
harder than the ricasso and handle. When was the last time you saw this kind of attention
to detail on a neck knife?
In summary, Fred Perrin’s La Griffe is a unique, practical, and totally functional defensive
knife design. These days whenever I choose to wear a neck knife, it’s a La Griffe.
CHAPTER TWO: “ME MYSELF AND EYE” 16th of February 1999.
A self portrait of Fred Perrin’s La Griffe !
assisted by Sundey the Cat, specialist in claws since her prime age.
I don’t want to present to you a self evaluation of my own design.
Because it’s almost impossible to talk objectively about something so personal as my GRIFFE. (The Claw in french…)
But a lot of people come to me and ask me: “Why ? Where it comes from ? Where is your hairbrush ?”
But seriously, about the design, I needed that tool for myself and there were no equivalent for real self defense and everyday chores.
During the 80’s, I have used a lot of knives. Some were good some could but I was always looking for a short blade, with an excellent grip, with a total security (like opening my hand without losing my knife, and without using Superglue!).
As a “martial improviser”, I wanted also to use all the grips I knew with no more than 2 inches of rigid blade.
I was looking around the Kerambit and equivalent but I was disappointed
because the ring was at the other side of the handle and it was too big.
With some of my “Hyena Brothers” (close friends) we began to try, to use and to abuse, different designs. The main idea was to put the ring between the blade and the handle.
(And it was long time before the new Gerber Cameleon…)
Then we have tried many blade shapes and handles.
Finally the classic Griffe was born at the end of the year 1990.
1/ A fixed blade is always ready.
2/ Small and easy to conceal
3/ Small edge means great control on razor edge.
4/ Short blade because with long blade I could kill to much easily (sorry but that’s true !)
5/ The ring hole is the security belt. I can climb a tree with my knife in my hand, ready to be used.
Almost impossible to disarmed. (I talk here about real combat situation as during sparing tests…)
The handle ,à la “Derringer Gun” : one finger in the ring, two on the handle and the little finger at the butt.
This is what I always wanted for Christmas !
I can grasp my opponent, i can hit with hand open and then I close my fist and the Griffe gets in action !!!
It is so easy to check and then strikes back.
This is the power of that design. You can check, grasp, use all the power of your hand and the blade sticks in your hand, following your movement.
The moment your opponent will see the Griffe, if he sees it, it will be to late.
Now, my first customers were policemen, soldiers, alpinists, sailors, firemen and dockers…
But soon the concept “Take it, pull it, use it …” has become famous toward women and especially my wife and my wife’s friends.
She: “Ooooh c’est joli !”
Myself : “Grrrrrrroal!”
The neck carry was also a must for me. Whatever you wear, Tuxedo or Santa Claws ‘s “suit” !
Neck knives are really useful when they are light !
Some people around me feel naked without it even consider it as lucky charm.
My Griffe ?
It’s my ” #@&$¤%” signature !
Today while attempting the 29th SICAC, the oldest Parisian knife show, I came across Pierre Supper’s table to check the last Mid Tech Fred Perrin Concept releases. Pierre is responsable of all the industrial production of Fred.
Of course, as a fan as I was immediately attracted by a Perrin/Janich fixeblade name the Fusion: an heavy short knife with a thick spine !!
A very solid massive fixed blade with an aim at self defense.
Michael Janich, like Fred Perrin are both instructors in the way to defend yourself against knives but also to use this sharp tools as equalizers. They bot have a very pragmatic approach. Fred always says that the best defense equipment are runner shoes for running fast and away of danger for example.
Looking on the table they were so many wonders.
A Bowie La griffe. This is a Chisel 440C tool.
Damascus Mini and Normal !
The famous Shark !
Le Shark folding version which is actually a friction folder.
Le Héron, another very unique concept short blade !
The Big Hole Concept in action !
The Mini Pic !
And suddenly the Love at First Sight:
A beautiful double ground La Griffe !!
Eventually I have come back home
This new industrial La Griffe got only one sharp edge, all the others are rounded and D2 steel is stone washed to an exquisite finish.
Fred Perrin is a veteran of the French Army and expert in survival under extreme conditions. He has designed a knife that is the epitome of simplicity, efficiency, and effectiveness. It is used by military and police operators throughout the world and is widely used in the open ocean fishing fleets of the Pacific Northwest and Alaska. With the addition of the new variation, the WWR model, it is now the perfect emergency companion for climbers, kayakers, and white water rafters.
Fred is one of the world’s premiere “real world” fighting instructors. This fact is directly reflected in his bare bones no-holds barred style of knife making. His attitude and philosophy have propelled him to design some of the best and most affordable combat knives in the business. Fred comes from a diverse background of French Military Special Forces service and a life long study of martial arts and weapons systems.
Fred Perrin is a highly sought after instructor in Europe and a highly recognized and respected knife maker to those who use and carry knives in high risk environments.
You can notice the temper line on this picture.
On this one: 3 temper lines !
From top to bottom:
a custom forged bushcrafter Lagriffe with a 1075 convex flat ground chisel blade.
a bowie Lagriffe chisel in 1075.
the new La Griffe Dark double flat ground in D2 Tool Steel.
a double hollow ground delux custom in 1075
a three time tempered classic version in 1075.
“…I couldn’t believe it either until I held one, I had similar reservations up till that point too.
This is a very utilitarian knife, it’s made to be used. The ring helps you hold onto it even if you’ve heavily jarred the blade…
…It looks like a ring knife, but it’s not. The ring (index in, forward grip; pinkie in, reverse grip) is a retention feature. I have one and let me tell you it’s not going to leave your hand unless you want it to. The handle sits within your fist and gives you a very solid feel.”
NOT ONLY A NECK KNIFE:
“Fred Perrin often carries it in the belt (his kydex sheath is set up with a strap to go over the top of your pants and the strap grabs under your belt so when you draw the sheath doesn’t move) for a reverse grip. This means the blade is down and when you draw you have the edge up, facing your knuckles. His moves were very fast, I don’t know what martial art he studies so I can’t tell you for sure. But what he told me was that he made these knives to compliment that art. A lot of stabbing moves or it seemed to this untrained eye…”
“La Griffe is Fred Perrin trademark and is a concept of its own.
It comes in a variety of styles and lengths and his 100% handmade. Every has a temper line and comes with a kydex sheath. A true utility fighter, maybe the last knife you’ll ever want to own. 100% hand crafted in France. Copied by many, never equaled. Employed by members of the French Secret Services…” LACI SZABO
The only companies which got Fred Perrin‘s authorization to make a Lagriffe version are mentioning him in the description of their knife. To my knowledge here they are:
Emerson Knives for the Tiger Claw.
Spyderco for the SPOT and SWICK
Cold Steel for the Cross Guard and
Bastinelli knives for the coming Raptor.
If they are any other manufacturers who mention “Fred Perrin’s design”, he has given his autorisation to reproduce his pattern.
The main defender of inventors is an inventor himself: Sal Glesser. He will never use any design or inventions without mentionning and paying royalties to the source inventor. Sal does that for Emerson’s Wave for exemple but also for the way Fred Perrin used a hole in a neck knife before neck knives were in fashion…
Sal also give credits to locks inventors and pay royalties to them.
This is respect as Fred also shows respect to inventors and forgotten knifemakers.
And here is the Bastinelli Raptor a prototype destined to be produced in 2019.
This one will be my 5th Paramillie 2, so it is a well known plateforme but the offer was to great to pass: a CPM Cruwear blade and a smooth black G10 handle: another exclusive run from the Knifecenter which is synonym of of a great attention to detail. This sprint run is absolutely flawless and its operation is smooth like butter. You really feel in your hand one of the greatest all-terrain EDC version ever made by Spyderco, no more no less. You can also check my previous review of the Knifecenter Smooth S90V Native 5.
Perfectly centered and the grind lines just great. Golden is getting better and better through the years, it is like a real jewel of a “tactical knife”. Sal and Aric can be proud of that one !
This sprint run got smooth black G10 handles but pardon my French, I do love my edges even smoother than that. It’s really a matter of personal choice but the relation with my tools goes through the finger and the palm of my hands.
So OK It was really a matter of minutes just to round a bit the G10, as I was not obliged to sand all the slabs. So it was an minor adjustment.
The edge is already thin, So I cannot really improve it.
CPM Cruwear is great for stropping: a mirror edge is done very easily.
It is just the first try at deshouldering, the factory edge is still there and I want to test it that way.
This is not my first CPM Cruwear blade as my Grey Millie “Gandalf” was my first.
The knife operates so smoothly I have decided to carry it tip up and have installed a short deep carry clip which disappears under my ring finger once deployed. My intention is also to use the version of the Paramillie 2 hard so I want to hold it by the pivot without a clip coming in the way.
More to come soon.
En this black smooth handle reminds me that knife of my childhood: Le Couteau d’Office Nogent Carbon (Nogent carbon steel paring knife) which was the sharpest knife in the kitchen.
I always believe in personalizing your own tools. I also love how titanium can turn sweet under the fingers. So here I am on this afternoon testing different sandpapers on handles.
Eventually I have found that 800 grid is more than enough to make the frame and edges standing out. This is what I was looking for, this feel of old denim.
Of course I can always go back to it and by using scotchbrit refining the finish but I wanted something rough.
The Spydiechef was the first to be sanded. The idea is to keep always the same direction.
On the Spyderco Tuff the effect can be more dramatic for a much more steampunk look.
I’m quite happy with final results.
So let’s try that on the Falcon !
As you know my experience with 52100 has been enhanced with the owning of a great Paramillie 2 Sprint Run. This steel is staining and pitting just by gazing at it hence the forced patina I have done to protect the pivot’s hidden part.
But then ? After almost a year of rotation how 52100 has behaved ?
“52100 will take a very keen edge. What is often called “sticky sharp” or “a hungry edge.” said Sal in March 2018. He also said he wanted a Millie in 52100 to be used as Mountain knife.
And this is true. Like SuperBlue steel ! Those folding razor steel are flirting with lightsabers and are strong. Of course you don’t use your folders like a fixed blade as the pivot and lock can be weaker than a tang. “Batoning” (if any) with a folder should be made with the blade unlocked to avoid any stress on the locking mechanism. But lateral blade jolting inside the cutting medium is commun. I do that in plastics when It got resistance but it can happen inside a wooden knot too. So lateral strength especially on a thin pointy blade like the Millie/paramillie and Para3 is not a luxury as is also edge stability.
But the greatest joy and satisfaction in owning a 52100 blade is in its honing. This steel is made for leather stropping. In two passes it already get back to razor. Of course, I had convexed the blade to a very thin edge. In a simple 2 minutes round, after a full day of using, your knife is back to uncanny sharpness. This is so satisfying !!
The thick bottom of any plastic plastic soda bottle is my favorite test for geometry and bite as it can collapse under the force if not thin enough. The Nilakka is the queen in that game. But my full flat ground blade are all convexed to achieve powerful and controlled cuts. The thinnest of the bunch are my 72100 et CPM M4.
Ghost my CPM M4 millie has been used on various cutting duty involving food and grease as has been my 52100 Paramillie. I don’t do cutting ropes tests or anything which can be numbered, I go with the feeling. Even if I enjoy reading those tests it’s “quantity” over “quality” as a blade is 33% steel 33% heat treatment and 33% blade geometry. Cutting hard wood, looking and touching the wood’s grain and the cut fibers and how the edge behave when twisted inside is my way ad as 52100 is also used in razors: shaving sticks of hard wood is done with ease and control.
For Ed Fowler (grand manitou of forging 52100) when carefully forged and heat treated, this is the most versatile and dependable steel available to the knife industry. He feels that a man who depends on his knife deserves and needs the most reliable knife possible that will not bend easily or break when he needs it the most. A knife that can be sharpened easily and is friendly to his hand.
Ed got a very oldtimer advice for keeping his 52100 blade rust free:
“Any oil will keep rust from the blade, many times I simply apply the oil from the side of my nose or from behind my ear…”
One thing is certain: the more you use your 52100 blade, the more you check it and oil it with your hands.
Ed is not stranger to folding knives as he has teamed up with Ron Appleton and forged the blade out of 52100 for his “Chub” in 2001. Ron wanted to create a folding knife that would be capable of withstanding the rigorous demands of a straight blade user.
Our friend Ed Schempp is another fan of 52100 here what he was saying about it in 2005
“52100 is a very good steel. Ed Fowler has spent a life time tweaking this steel to improve performance. With multiple thermal cycles, normalizing and interrupted quenches, and low temp forging has accomplished and extremely fine grained steel.
Most of the time a good smith can further refine the grain on production steel. Some of the grain can be smaller then but not of the homogenous size that Crucible attains in their CPM products.
This translates to a finer cutting edge that can be sharper than S30V. This edge will not necessarily last as long as a high Vanadium steel like S30V, but can a higher initial sharpness.
The thermal treatment to bring the best of what 52100 has to offer will be expensive, although a simple heat treatment will still bring forward a good amount of what the steel has to offer. Differentially hardened blades would be very difficult to do commercially.”
So 52100 is still a guilty pleasure, because you know it will stain, it will need maintenance but when it come to using it hard and hone it back to sharp, this steel shows is true colors !