A real Craftsman

I love the views through the microscope. That’s definitely sharp. Thanks for taking the time and effort to make this excellent video.

Impressive stuff Felix - i use my blade probably 3, 4 or 5 times a week and i sharpen it with a basic sweep and its good enough 90% of the time I'd blunt that right away, so a razor finish isn't necessary - but you're efforts to prove a point are mighty impressive

I think that some kudos should go out to the sharpener also. That level of precision should be helpful to most everyone to be able to sharpen almost any knife blade to extreme sharpness. Your Victorinox is probably the sharpest I've seen, good job Felix.

Good job. I am obsessed with razor sharp knives. All my knives are raroz sharp, including my swiss army knife. I use only sand papers from 400 to 1500 degree of graduation. Only first phase of sharpening, I do on 400 paper on the hard base below the sand paper until forming ''wire''. All folowing phases of sharpening I do gradually to 1500 degree sand paper on the soft base below the sand paper.Then I use leather strap with polish paste like old barbers and finish sharpening on dry leather strap. The result is mirror polished, frightfully sharp blade. It is cheap and relatively long lasting proces, but I am very proud of it.

I am always amazed at how sharp the edge of the can opener stays on my SAK after five years of use.

Just what I needed :)

Several years ago there was a guy on KZfaq that got his knife so sharp by hand that he could cut wet toilet paper and a hair like you demonstrated. Your point about the size of the granules in the steel is spot on. I tried dozens of knives, dozens and dozens of failed attempts. Then, one day I had success! Long story short, I found four different knives that worked. I showed it to my adult son so people would not think I was crazy. Of coarse I was probably crazy for trying it in the first place. :-) All my work was done by hand with various grade wet stones to a wet ceramic flat stone and strop with green compound. No machines. I was never able to cut a hair. - sad I tried the same experiment about 1 1/2 years ago with the exact knives and failed! Maybe my beat up hands have lost the dexterity? Maybe the TP was different? I have very sharp knives. They are NOT hair splitting sharp. That is a whole different level! I have never seen a SAK that sharp. Well done! Because of this video I thought for a second, I should give it a try again? Nope! I just stropped a few knives like I do everyday and got it out of my system! Again, well done. Thank you for posting!

wwooww, you have taken sharpening a Swiss Arm Knife to another level, don't know what the Manufacturers think but I am amazed at what you have achieved, Well done Felix, Cheers Ian from England

Always a Big Thanks to you Felix . All the best for an Excellent Holiday Season. All the best in all future endeavors 2022 .

WOW! Like.... just WOW! Very good !

Hello Felix. I am totally amazed at how sharp you were able to get the knife. I have never seen a knife so sharp. You have encouraged me to do some sharpening. Thank you so much for all you do for the community. Merry Christmas my friend.

Thank you for sharing this technique. I was able to grind down the small blade on my Swiss Champ into a whittling blade as demonstrated in your other video and sharpen it to approximately 17 degrees on each side and get it close to the sharpness you reached. Your videos furthered my appreciation for Victorinox knives and are why I decide to carry the Swiss Champ with me everywhere over the Leatherman Wave. Cheers!

Damn,now that's a very thorough vid with proof that those sharpeners work better than anything else I've seen to date,thanks for this vid,I know what sharpening system I need now , because it doesn't damage the knives and I have some expensive knives and I've always been hesitant about sharpening them simply because I was afraid of damaging the blade too much,I'm serious about that,,,thanks for this vid man really....

Fantastic job Felix! Today I decided to sharpen the large blade of an old Victoria Officer. I used my KME and finished with my strop and achieved a hair shaving edge. Later I went for a walk and came back to this video on my feed. This video is over a year old and I'm sure it's no coincidence. What strange times we live in.

I just bought the Kadet Pro thanks to this video, Felix! Also added the 2000-3000 grit Arkansas stone.

Great Video Felix ! A lot of work to get a mirror finished all I want from knives is a working sharp knife meaning toothy sharp !

I'm using same Swiss knife since 23 years. I'm amazed of scissors. I did cut everything and still sharp. I love to use when im on fishing.

This cutting of limp hair is amazing. Your sharpening skills are fantastic. The microscope views were for me an eyeopener, it makes sense why your blade is very sharp. Thank you for sharing.

Dear Felix, thanks for the tips, I always learn something new! Keep up your enthusiasm and stay young!

interesting - experimenting and patience 👍👍

Great video!!! Thanks!

Brilliant! Another fantastic video Felix.

That was an excellent demonstration and a lot of fun to watch. That is indeed the sharpest Swiss army knife I have ever seen, good job my friend!

Excellent demonstration showing the importance of sharpening an edge precisely using exact and equal ground angles. 🎁🎄🔎

WoW, Amazing Felix, Have a wonderful holiday my friend!

A very sharp instruction ! Thank you

🙆👏👏👏 excelente, un gran abrazo desde Argentina!🇦🇷

That is seriously sharp! Thank you for the awesome content you put out. The secret is the stropping. My latest Spartan showed a BESS-score of 165 out of the box. After 5min of stropping I got it down to 85 and it was hair splitting sharp. The chisel grind on some knives are even easier because of the more acute sharpening angle. Stropped a brand new Skipper for a few minutes while watching this video, tested the knife and got the score 75. I usually maintain the blades just by stropping and if sharpening is needed I use Spyderco ceramic rods, freehand. They are super hard/fine grit and the set has 4 different shaped rods so you can do the serrations, too.

wieder mal gut gemacht!!!!

Wow! That’s sharp!

This week bought Climber. 👍😃

Wow, it got really sharp. In my case, the use of the blades is exclusively urban (I go fishing once a year in the Brazilian Pantanal), and I only use a leather strope to keep sharpening. Thanks for the tips and the nice class Felix! Best!!!

Cool, very good job. I love your video.

Impressive. Thanks!

As usual very interesting and enjoyable, 🙏🏼

Thanks for the effort :)

That micro-view is outstanding! Wow!

That is amazing, Herr Felix. I gotta get one of those sharpeners.

Fantastic video. I have used the spyderco sharp maker for over 10 years and then a leather strop. It has worked well enough for me, however I now want to take my sharpness to this level. Thank you for the effort and time spent making the video. Merry Christmas to you and your loved ones.

Felix, you've found a new way for me to shave off annoying houseflies. Thank you. Brilliant as always. ;)

Ottimo Felix! Un grande saluto dall'italia del sud! Buona Vita!

Speechless

Great tips as always, my friend! Thanks a lot for sharing your knowledge with us. Hugs from Brazil!

Hello from British Columbia 🇨🇦

I wouldn't have thought it possible if I hadn't seen it. Great work! 👍

Süper good video. Very exciting. Thaks man. 🤘🐺

incredible, amazing, i've never seen anything like that before

That's amazing! Congratulations on an amazing edge.

excellent video thanks. at 6.00 till 6.09 you grinding the blade sounded exactly the same as the flying sound effects for the UFO craft in the 70s TV show UFO. Made me chuckle, wonder if anyone else ever notices?

Wow! That is super sharp. Love and blessings!

That is indeed Scary sharp Felix

No one has these tools. Just do your best. But the info on steel is very good.

I need to get a sharpener like that! What a great tutorial on how to get a razor sharp edge! Thanks again for another great video! Wishing you and your family a very Merry Christmas!

A leather strop is the best finisher for a hair-slicing edge. One side with compound, and one side bare, smooth grain side. Screaming sharpness every time, as long as there's no damage on the blade.

Great video!

The old intro theme! I love it

Would be interesting to see how long will the knife retain such sharp edge. For example, would it still be able to cut hair after slicing some wood few times or would that be enough to already deteriorate the edge.

WOW, I have never seen that done before!. As always, I am always Amazed after watching your Videos....Thank you Felix....YOU, are the BEST!!!!!! Caio From the USA.......

super video! Habe per zufall deine videos entdeckt...hatte davor keine taschenmesser, mittlerweile ist es zum hobby geworden! liebe grüsse aus der ostschweiz, mach weiter so!

To produce a sharpened edge such as you are showing in this video, you are approaching a level of insanity, but l understand completely. Recently l have started to put a polished edge on my sharpened EDC pocket knives and am totally amazed at the level of performance that l am getting from D2 and other stainless steels. Of course, not at all at the level that you are attaining in this video, but it is good to see that the SAK is capable of this level of sharpness, and it gives us "knife nuts" a visual instruction in what is possible if we try hard enough. Thank you for your dedication and experimentation.

Very impressive!

Now that's the definition of "scary sharp"

Brother, I am just proud that you get paid to do this! Carry on!

good result my friend, good. A greeting!

Felix. Try using a piece of denim rather than leather for a strop. Stick it down with double sided carpet tape. Use the green compound only. Also try stoking it several times per side using quite a bit of pressure, before flipping it over. I find that people who flip the knife at the end of every stroke, tend to anticipate the flip and as a result round their edge.

Very impressive work Felix! Just amazing

I have achieved a hair splinting edge with 440c, using a lansky, finishing with there 1000grit ceremic, yes it's cleaned with a rubber as oil dies remove the metal dust but seems to smooth out the ceramic stone I found. Good job, I chose 18degrees. Enjoyed the microscope shots. 👍 I also found your axe sharpening video to be a great help. Thank you.

I bought both of your two books a few days ago. I hope they will show me some survival advice for the woods and be able to have some fun with projects. I use a DMT sharpener and keep my sak knives sharp. May you have much happiness, wealth and good health in the future.

Dear Felix, thank you for this video - you went into something like deep material science instead of making copy of the basic videos about how to sharpen a knive. That´s why your content is different an worth to watch. You did a great job, again! Greetings to Switzerland, regards: René

Absolut genial danke

Ha ersch vor churzem di Kanal entdeckt Felix. I schäme mi fasch chli für die Bildigslücke. Du bisch sone ufgtellte Kerli. Macht freud dini Videos zluege u stolz weme d"Resonanz us de Kommentär liest. Alles guete zum neue u mach so witer. Gruess Bärni

Wow! Outstanding video. Really good info.

Fascinating viewing and a very different look at blade sharpening than I have ever before seen!

Great videos !!!

Excelente trabajo, felicitaciones. Saludos desde el Tucumán 🇦🇷

hello felix, i love my sak and have been carrying one for almost 50 years. alas, even though i like a sharp knife, i rarely sharpen mine. these knives hold an edge so well. if mine was that sharp, i would probably cut myself just opening it!

Felix, I am most impressed. Well done, sir!

All I can say is...WOW, great video

Excellent. Thank you.

Thank you Felix. I always knew that my kitchen carbon steel knives were easier to sharpen but now I know why. I have always just sharpened by hand but I think the sharpening tool to set the angle would give better results. The best I have ever seen someone sharpen a knife was onboard a Japanese fishing boat. They used large water stones and did this by hand without tools. I have one of these knives and the angle on the blade is set at about 7 degrees. They only sharpened one side (the right hand side) and the left side of the blade was left straight. Years ago I did find a couple smaller versions of these types of stones. The 1000 grit stone is about 20 x 25 x 100 mm and the 6000 grit stone is about the same size but a bit smaller. The name of the brand of these stones is SUN TIGER and they are made in Japan. I don’t think you need to improve your sharpening technique because cutting hairs is about as sharp as anyone of us need… but if you decide to try a 6000 grit stone maybe you can split the hairs down the middle from the top to the bottom 😉. Cheers and have a very merry Christmas. PS… Thanks for letting us know about the level tool on the iPhone. I didn’t realise that it existed until now.

I really love sharpening, thanks🙂👍🏻

Felix , good video , thanks for sharing , God bless !

That was simply amazing Felix. Now that is a sharp knife brother.

This is what it looks like to be committed to excellence. Superb, my friend. See you soon!

Super technical video! Thanks a lot for all that info. 👍 cheers!

Bravo Felix! Now I have a challenge for my SAK! 👍👌

Really amazing Felix!!!

Some double-sided tape and a piece of leather on one of those stones and you can make a strap for your knife sharpening machine. Also doing some Burr management would be really helpful. They make some pretty high grit stones for that particular machine and I think if you're after a mirror polished edge it would be a good idea. One last thing is a thousand grit edge with proper burn management and light stropping with no compound would give you a really good everyday carry edge. I used to always mirror polish my edges but recently I've been doing more of a toothy edge because I've noticed that although the initial sharpness isn't as impressive it lasts much longer. Great video

I'm expecting an order of diamond hones from 800 to 3000 grit next Tuesday. After they arrive, I'll be designing and building my sharpening jig. I stopped your video in the middle and dug out a new eraser. Thanks for that tip. I don't think I'll be trying to get as sharp as you just did, but you've improved my technique even before I've started.

Awesome. Good job, Felix.

Bravo Felix! You did it!

Increíble, saludos desde Costa Rica

Excellent.

I never knew all the details, but I have noticed for years and years how sharp I can always get a victorinox compared to many other blades. I have only medium and fine grit lansky diamond stones. Then I have a double sided small lansky diamond hone that was fine and extra fine when it was new. It is so worn by now, that I honestly don't know how much diamond grit is left, but it still works for second to last process. Then I have a length of leather belt that I cut, and use for stropping. All of my blades come out sharper than anything else I've come across. I might note that I've been practicing free hand sharpening, in an almost obsessive fashion, for about 30 years.

Hallo Felix, ein interessantes Video und sehr schön erklärt! 👍🏻 Danke und LG Micha

Thanks. May you and yours have a blessed Christmas and a grand New Year. 👍🔪🇨🇱

Merry Christmas, Felix!

That's a sharp blade! Wowzers!