Super sharpness sounds the perfect dream for every knife owner. These ceramic knifes appear to offer that...but before I buy a set of them at considerable dollar value, I am concerned over all this talk of being brittle.
Wass the point in having a knife if its going to snap because you chopped through a bone and twisted it free...Steel would never snap like that...so are these ceramic knifes still experimental. Why don't they reinforce the zirconium with titanium to make em stronger?
@depoty Titanium isn't very hard. Generally when used in knives, it can be hardened to almost 50Rc, which is nowhere near the hardness of the Zircon used in these ceramic knives, which are second only to diamond. Now if they would make a pure ceramic knife without the impurities they have to put in for regulations, I would buy one...
I actually bought a Zayka folding knife with ceramic blade...in just two weeks of normal use the tip snapped off...so I think they are actually a load of crap now and I would not recommend a ceramic blade. Cold steel man you cant beat it ! I have had a serrated steel folder for 10 years and its been used big time and it still slices through stuff with ease. Hey dude Thanks for the intelligent reply by the way.
@depoty No problem. The problem with ceramic knives is that for every bit of hardness you get, you lose toughness. A harder, higher carbon steel will break just like a ceramic blade, where as a softer steel will not, but it won't retain as sharp of an edge. It's a balancing point that has to be approached carefully. There are other factors in a blade as well, grain, wear resistance, etc. I prefer a good non-stainless blade myself, like a Swedish high carbon steel. They get scary sharp...
@spiderpig85 you should read about what the japanese sword smiths did, they where extremely clever, they'd basically take the very hard high carbon steel and use it as the out layer of the sword while the softer steel with more iron content would be used as the core. so it has insane hardness, yet is also very soft.
@spiderpig85 A very good point. Hardness and toughness are a tradeoff. Look at watch crystals. Sapphire is preferred because of its superior scratch resistance compared to mineral glass. This is due to sapphire's greater hardness. However, with this hardness comes brittleness, i.e. lack of toughness. A sapphire crystal will scratch less than mineral, but a heavy impact can shatter the sapphire. Mineral is less likely to shatter because it is a more elastic material.
@TankDriverOriginal You usually send them back to the manufacturer. Kyocera will sharpen 2 knives and send them back to you for $10. It requires a diamond wheel. The knives are likely harder than any sharpening tool you own.
@TankDriverOriginal I recently bought a Kyocera ceramic 5.5 inch Santoku knife as well as a 4 ceramic knife set made by Rosewill. The 4 knife set was $25 and the Kyocera was about $40. The Kyocera is much much sharper and a nicer knife. The Rosewill knives are great when you consider the price but nowhere near the quality of the Kyocera.
@Plur307 Thanks for the advice, I will go with the Kyocera then. I have a little pocket knife from Boker, the little "Armed forces tanto" with half serrated blade, I love it and I thought getting a ceramic knife from them, but they have pretty short ones and Kyocera is Japan made, so they must be good. 40 Dollars is also a good price for a good knife. 8-)
Thanks for the test. I have 4 Kyocera knives and I would freak out if I dropped them. You have demonstrated the durability of the blade though. These are great knives that compliment my Diamant Sabatiers perfectly. Just use them as instructed and adjust your knife technique so that the blades are NEVER anchored to the cutting surface. Practice on citrus skins to build up muscle memory is a good tip. If used intelligently, these knives will give you trouble free use for a very long time.
you're not testing the hardness. You're testing the durability and the brittleness of the blade. Hardness is a different property scientifically speaking
@c2thedub14 means you got fooled. I have a"ceramic" knife at home and did the same thing, the very tip snapped. It's not the real ceramic knife. I pressume there's many companies making profil with low quality materials or just not enough zircon in the clay.
@renacuajo mine was a legit kyocera, bought off cutleryandmore i was fooled into thinking itd be a good investment, but the pruduct was still the same.
A great demonstration. You have demonstrated just how durable these knives are. I use them myself and love them. A recommended addition to anyone's kitchen. Well done and thank you.
Ok, I would like to point something out to people who think that ceramic knives break easily. They are HARDER than Steel. They can take sudden impact (such as falling to the floor) pretty well. The thing is, they are NOT stronger than steel. Strength is the measure of how much force the material can withstand before it breaks. If you take heavy weight and try to bend the ceramic, it won't bend. It'll just shatter into shards. The steel won't break, it'll bend, but will be able to withstand it.
This kind of demo is great to dispel the myth that these blades break easily. Thanks! I thought they weren't so tough. I'm going to buy one now. I won't buy the white one. The black ones go through an extra firing process called a "hot-isostatic press," creating a tighter weave between the ceramic molecules, thus creating a tougher blade. So, I guess, once you go black you never go back... :)
Thanks for the test here. A lot of people ask/criticize the video for dropping the knife. Ceramic knives are known for extreme hardness/strength but lack toughness; therefore making these knives brittle. In other words, they are resistance against deformation, but not against fracture. The intention of the video is to show that this knife can survive a normal fall in a kitchen.
@Chemicalkinetics your right, as odd as this vid is it does show it can keep up with a kitchen. i have seen wusthofs break 3 times now, the wood always breaks when they are dropped.
This test although valuable does not at all test the "hardness" of the blade. Ceramic is very hard, there is no doubting that, but the downfall to ceramic is that even after firing it is still much more brittle than steel. This test is more accurately testing the toughness or strength of ceramic which is its ability to resist or the total amount of energy required to cause failure.
brilliant video and done exactly how it should be done!!! everybody knows ceramic knifes are extremely sharp and hold an edge for a long time but nobody knows how well they work under stress like this.... and you have proved it!
And to the idiots with negative comments ... dont you fucking want to know about how good the knife is before taking out your 50$ ? This is better than any reviews
@amicka75 The point is that ceramic blades are very brittle, and this was just a test to show that the blade will not break if it falls off the counter.
@amicka75 Are you really that dense?!?! He's doing it to prove a point. Most people have the perception that ceramic knives while able to hold an edge very well will break at the slightest drop or jarring of any kind. He has proven that is not the case. As someone else said this is better than any knife review where they just talk about it or cut with it. He actually risked his very expensive knife to prove a point and show people it's not as breakable as people think.. Excellent video.
@Soulrider2012. I totally agree with you. I have 4 Kyocera Revolution knives in white: 14cm Santoko, 13cm Slicing, 11cm Veg and the 7.5cm Paring knife. I have used them daily for a long time with no problems. I have never put them through this type of stress though and will continue to be very careful. I would freak out if this happened to any of my knives, ceramic or steel. Kyocera knives are no good for hill billies, wannabe Rambos or idiots though. Great knives and a brave demo.
its not really like a ceramic like what your thinking of, its more like diamond then ceramic, its made out of zirconia ( i thinks thats how to spell it), which is a mineral. they supoer heat it so that way it crystalizes and turns harder than steel
@m415mike yea, but do they super heat all ceramic items to 5000 degrees + , and keep an insane amount of preasure on them over night, thats a similar process to how diamonds are made in the earth, so like i said, its more like diamond the ceramic
It's not your everyday ceramic, it's similar to the kind of ceramic used in machining tools to cut temperd steel. And that does NOT mean you should cut steel with your ceramic knife.
@theillusionist6677 But steel for e.g. high speed steel is more ductile and flexible so it can undure shock much more ceramic, therefore all the katanas are made of steel rather than ceramic.
@FeelFree3 yea, but i dont think they had high strength ceramics in feudal japan, ceramics thos strong just started being put in use, but uour right about the flexability, but only the core of the katana has the flexability, the outer core is ( please forgive me i forgot the term for the steel) the strongest steel known to man because of the process used to make it.
are you guys stupid? this knife is made out of ceramic.... its very sharp and holds a great edge, but also very brittle when you drop it or smack it into something
I wish everyone would stop repeating that the ceramic material is 2nd hardest to diamond, yes we know. Acting smart with their youtube knowledge, everyone here has searched up "Kyocera" on youtube.
Nice but proofs nothing... Body of those knifes might be second hardes material but the cutting edge is so thin (to be sharp). Under close look that knife certainly small cracks and teeths... so after test it's nice hard almost indestructible white plank in shape of a knife wow!
lol throwing it around won't hurt it. it is made from the 2:nd hardest material in the world. the only thing that is harder then that blade is diamond:P
That's exactly why throwingit around would hurt it. It's very brittle and would crack under sufficient pressure, unlike softer materials like steel which just flex and absorb the shock.
@fearsomemupp actually, the harder the material, the easier it cracks. tool steel fully hardened, before the tempering process gives it toughness, will shatter like glass if dropped on hard floor. glass will scratch iron, so it is harder, but needles to say, much more brittle. so, yes, a very hard ceramic knife is much more brittle than a steel knife.
@fearsomemupp Unbelievable, that refers to it's ability to hold an edge. That same property makes it very brittle and very likely to break under just this circumstance. So yes, this is a very good test to do and he is to commended for risking his very expensive knife to prove that while ceramic is brittle it is not quite as breakable as some people think. Most people think a ceramic knife will break if so much as bump it on something or drop it off the counter.
This comment has received too many negative votesshow
woopdee fucking doo youre dropping it off a COUNTER... who gives a flying fuck... that doesnt prove shit other than youre a dumbass who wants a name on a video on youtube and that you have no moral values of your home.
Sorry but it's about 0%. Glocks and many other handguns (mostly pistols) are made using polymers (synthetic plastic) for the frames. Slide, barrel, springs etc. are still types of metals.
@datzfast there are ceramic handguns. out of our pay grade though. pretty regulated too, for the same reason that kyocera adds metal to this knife, so you can't smuggle it onto an airplane.
@datzfast well.....i know for a fact brass isn't magnetic, but i'm sure the xray machine will pick it up. so ya, i'm not too sure what "the powers that be" would do to get around that. either a harder plastic or like you said ceramic would make sense. i'm thinkin we shouldn't talk too much about how to sneak a gun onto an airplane lol. i'm not a fan of some threatening anonymous phone calls.
The problably tested it on rats to see wether it does the job right ;).
But I guess that most people are afraid of testing their stuff for the benefit of all of us. I can't blame you asteroceras, if you pay good money for these knifes you probably would think twice before doing something like this.
But anyone deserves credit for this, but there is no comparison between dropping knifes (material damage) and taking cyanide (human damage).
You are not testing the HARDNESS, but the BRITTLENESS. You are lucky the blade did not chip or shatter. Even diamond can be shattered by a hammer, though it is the HARDEST material known. Don't drop your knives on purpose!
Why lucky? This guy is deliberately testing the brittleness of ceramic knifes. It's probably one of the most interesting clips about these kind of ceramic knifes on youtube. He is dropping it on purpose to convince us that the knifes are quite tougher than we've thought. How are you going to find out wether or not the blade will shatter? Just by trusting what the manufacturer has to say about it? He did a fine job by testing it and he didn't get lucky, because the whole point was to find out.
Hey! The manufacturers of Cyanex, The Fast Action Cyanide, say that Cyanex could be lethal if swallowed. But you can't take their word for it! There's only one thing to do: test it with a YouTube vid.
thank you for doing this test for everyone to see. I have a broken blade, smaller than yours. The user broke the edge by trying to cut frozen vegetables. The lateral shear force chipped 1cm of edge.
That was painful to watch. Nice test though. I still would stay away from cutting through bone and such. Imagine the luck of someone without it digesting a ceramic chip of the blade. lol
... LawmanWu you are fucking stupid doode... its ceramic... and im pretty sure if you where yo drop a ceramic object it would break... so thank you Keramickenoze for showing the durability of the ceramic knive. I'm currently trying to find a good set to buy and im jsut scared to buy the atm because they cost a shit ton of cash and im scared to break them :(
You don't have to worry about breaking it until you start chopping trees with it. which is something i'd suggest not doing with a normal knife either.
This stuff is graded second toughest material on earth. Diamond being the strongest.
this video shows ceramic knives don't break when dropped off a counter. That's the only thing he's trying to show. Give ceramic knives a chance, they are very well worth using.
yeah, but once again showing the superiority of cermic has nothing to do with this test that the cheapest steal knife could do. Show me some test data showing that it has less friction when cutting or slices with less resistance. This shows nothing except crappy ceramic knives break when dropped.
Way to miss the point. The aim of this test is to disprove that ceramic knives are fragile. You said yourself "showing the superiority of cermic has nothing to do with this test".
You may as well have said "Yeah but theres no skwirrals in it lol"
I didn't miss the point! I know ceramic knives are superior. I'm saying to prove superioirity against a metal blade this is not the way. This test shows metal blades are superior. It doesn't do justice to ceramic blades.
But that's not the point of the test. Many people disregard ceramic knives because they're known to chip easily. The trade-off is blade with a sharper edge that holds for longer. This is common knowledge. What this guy is saying is "well I thought I'd test the claim that if you drop the blade, it will snap or chip", and that's what the video is about, that's what it does.
Your complaint is that it's not a video about something else, which doesn't make sense.
appreciated. However, the bigo argument is that ceramic knives are superior in every way. which they are. Excecpt for the shatter issue. But, even now it's well known that ceramci knives can handle dropping. so, what's the point? We all know ceramic knives are sharper, harder, and shatter resistant. It's a useless test.
Wow. Steel or ceramic, I don't have the financial luxury of being able to try my hardest to destroy my kitchen utensils. Rather than break it, you can always donate it to me! :-)
It´s very good
cuchilleriafernandez 1 week ago
This has been flagged as spam show
this vid sucks
gua543 2 months ago
why would u damage ur floor like that?
ElPajaroMexicano 5 months ago
would have been good to see it cut something at the end of the test !
mickymeltdown 5 months ago
Super sharpness sounds the perfect dream for every knife owner. These ceramic knifes appear to offer that...but before I buy a set of them at considerable dollar value, I am concerned over all this talk of being brittle.
Wass the point in having a knife if its going to snap because you chopped through a bone and twisted it free...Steel would never snap like that...so are these ceramic knifes still experimental. Why don't they reinforce the zirconium with titanium to make em stronger?
depoty 5 months ago
@depoty Titanium isn't very hard. Generally when used in knives, it can be hardened to almost 50Rc, which is nowhere near the hardness of the Zircon used in these ceramic knives, which are second only to diamond. Now if they would make a pure ceramic knife without the impurities they have to put in for regulations, I would buy one...
spiderpig85 5 months ago
@spiderpig85
I actually bought a Zayka folding knife with ceramic blade...in just two weeks of normal use the tip snapped off...so I think they are actually a load of crap now and I would not recommend a ceramic blade. Cold steel man you cant beat it ! I have had a serrated steel folder for 10 years and its been used big time and it still slices through stuff with ease. Hey dude Thanks for the intelligent reply by the way.
depoty 5 months ago
@depoty No problem. The problem with ceramic knives is that for every bit of hardness you get, you lose toughness. A harder, higher carbon steel will break just like a ceramic blade, where as a softer steel will not, but it won't retain as sharp of an edge. It's a balancing point that has to be approached carefully. There are other factors in a blade as well, grain, wear resistance, etc. I prefer a good non-stainless blade myself, like a Swedish high carbon steel. They get scary sharp...
spiderpig85 5 months ago
@spiderpig85 But like any piece of gear, you have to care for it.
spiderpig85 5 months ago
@spiderpig85 you should read about what the japanese sword smiths did, they where extremely clever, they'd basically take the very hard high carbon steel and use it as the out layer of the sword while the softer steel with more iron content would be used as the core. so it has insane hardness, yet is also very soft.
tehatemachine 4 months ago
@tehatemachine That's pretty basic forging actually. The techniques they use to do it are pretty complex however...
spiderpig85 4 months ago
@spiderpig85 Well said!
geoatv 3 months ago
@spiderpig85 A very good point. Hardness and toughness are a tradeoff. Look at watch crystals. Sapphire is preferred because of its superior scratch resistance compared to mineral glass. This is due to sapphire's greater hardness. However, with this hardness comes brittleness, i.e. lack of toughness. A sapphire crystal will scratch less than mineral, but a heavy impact can shatter the sapphire. Mineral is less likely to shatter because it is a more elastic material.
herrbrahms 2 months ago
Nice way of testing under actual house-hold conditions.. good video.. this is what the average buyer looks for..good work
iyer 6 months ago
where did you get that from? and how much?
HeroHasGuns 6 months ago
How should a ceramic knife be sharpened? Just with a whetstone, like regular metal blades?
TankDriverOriginal 6 months ago
@TankDriverOriginal You usually send them back to the manufacturer. Kyocera will sharpen 2 knives and send them back to you for $10. It requires a diamond wheel. The knives are likely harder than any sharpening tool you own.
Plur307 6 months ago in playlist Sushiwarehouse
@Plur307 Thank You, it's good to know this. These knives really attracted my attention, they sound like awesome! 8-)
TankDriverOriginal 6 months ago
@TankDriverOriginal I recently bought a Kyocera ceramic 5.5 inch Santoku knife as well as a 4 ceramic knife set made by Rosewill. The 4 knife set was $25 and the Kyocera was about $40. The Kyocera is much much sharper and a nicer knife. The Rosewill knives are great when you consider the price but nowhere near the quality of the Kyocera.
Plur307 6 months ago
@Plur307 Thanks for the advice, I will go with the Kyocera then. I have a little pocket knife from Boker, the little "Armed forces tanto" with half serrated blade, I love it and I thought getting a ceramic knife from them, but they have pretty short ones and Kyocera is Japan made, so they must be good. 40 Dollars is also a good price for a good knife. 8-)
TankDriverOriginal 6 months ago
Vs stainless steel: does not rust, does not react with food to produce odour and stains, harder than steel == coool
sp1ic3sp1ic3 7 months ago
how many people you heard saying that ceramic knives "shatter like glass"?? lol
snowdjagha 7 months ago
well done ! nodoubts left on Kyocera ceramic knives resistance !
Rudy1310 7 months ago
Thanks for the test. I have 4 Kyocera knives and I would freak out if I dropped them. You have demonstrated the durability of the blade though. These are great knives that compliment my Diamant Sabatiers perfectly. Just use them as instructed and adjust your knife technique so that the blades are NEVER anchored to the cutting surface. Practice on citrus skins to build up muscle memory is a good tip. If used intelligently, these knives will give you trouble free use for a very long time.
AndyinMokum 7 months ago
hit it with a 400mph train, then see how sharp it is...
TheChemicalQuornts 8 months ago
you're not testing the hardness. You're testing the durability and the brittleness of the blade. Hardness is a different property scientifically speaking
bw2082 8 months ago
there is a word to describe such things: indestructable!
fabiosbranco1 9 months ago
Kyocera must have awful quality control. my 6" santoku
1: came about as sharp as a henckels, most of my knives are ALOT sharper
2: the tip snapped off when i tapped it on the side of the sink while washing it.
c2thedub14 9 months ago
@c2thedub14 means you got fooled. I have a"ceramic" knife at home and did the same thing, the very tip snapped. It's not the real ceramic knife. I pressume there's many companies making profil with low quality materials or just not enough zircon in the clay.
renacuajo 9 months ago
@renacuajo mine was a legit kyocera, bought off cutleryandmore i was fooled into thinking itd be a good investment, but the pruduct was still the same.
c2thedub14 9 months ago
A great demonstration. You have demonstrated just how durable these knives are. I use them myself and love them. A recommended addition to anyone's kitchen. Well done and thank you.
AndyinMokum 9 months ago
i still like the sound of a metal knife falling better. this sounds like plastic. I know it isn't, but is sounds cheap.
FeestMR 10 months ago
you idiot
labefana91 10 months ago
wow! thanks for posting this I always thought the knife would shatter but I see now that's a myth.
garagepr0ductions 11 months ago
i think its hilarious that ppl think this stuff is like something new its been around forever look at boker kniver theyre awesome
a90351cleveland 1 year ago
this just in ......shit breaks when you throw it on the floor
ztiski360 1 year ago
thank you for your demo.
scd6969 1 year ago
Ok, I would like to point something out to people who think that ceramic knives break easily. They are HARDER than Steel. They can take sudden impact (such as falling to the floor) pretty well. The thing is, they are NOT stronger than steel. Strength is the measure of how much force the material can withstand before it breaks. If you take heavy weight and try to bend the ceramic, it won't bend. It'll just shatter into shards. The steel won't break, it'll bend, but will be able to withstand it.
Khalduknight 1 year ago 3
This kind of demo is great to dispel the myth that these blades break easily. Thanks! I thought they weren't so tough. I'm going to buy one now. I won't buy the white one. The black ones go through an extra firing process called a "hot-isostatic press," creating a tighter weave between the ceramic molecules, thus creating a tougher blade. So, I guess, once you go black you never go back... :)
metaspherz 1 year ago 2
wooot i made the dislike win! 48 to 47 :P
mersaccount 1 year ago
@mersaccount And I just made the score an even 48 to 48. Next?
metaspherz 1 year ago
@metaspherz dislike shall win
mersaccount 1 year ago
Very helpful, because ceramics split when they have poor quality.
epSosDE 1 year ago
Hey Thanks for the vid. I just bought that knife. I was wondering how durable or britlle they are. wtr7
wtr7 1 year ago
ceramic is hard. hard=brittle, aka breaks easily, not the other way around.
adamjlesandrini 1 year ago
it`s a ceramic knife you morrons.
Matei05101987 1 year ago
we get the point after the 2nd drop. cool oompa loompa stove.
reedux 1 year ago
Get a KYOCERA knife here:
w w w . chefdepot . c o m
Chef
chefgiovanni 1 year ago
This has been flagged as spam show
Get a KYOCERA knife here:
w w w .youtube. c o m /watch?v=aM2NqH3beYo
Chef
chefgiovanni 1 year ago
Thanks for the test here. A lot of people ask/criticize the video for dropping the knife. Ceramic knives are known for extreme hardness/strength but lack toughness; therefore making these knives brittle. In other words, they are resistance against deformation, but not against fracture. The intention of the video is to show that this knife can survive a normal fall in a kitchen.
Chemicalkinetics 1 year ago
@Chemicalkinetics your right, as odd as this vid is it does show it can keep up with a kitchen. i have seen wusthofs break 3 times now, the wood always breaks when they are dropped.
smashedzombie 1 year ago
you will fuck your floor up b4 that knife breaks!!!!!!
heyzues90210 1 year ago
dud that knife is harder than steel you are not gonna do anything to it by dropping it!
310shadow310 1 year ago
Great Review! I just bought that particular model and had concerns about its strength. However it seems to be pretty tough. Thanks!
linmajon 1 year ago
look at the size of that stove.. hahaha xD
LCBChef18 1 year ago
This has been flagged as spam show
The KYOCERA made in JAPAN are the best !
copy the link and put it together. Chef
w w w .youtube .c o m/watch?v=aM2NqH3beYo
chefgiovanni 1 year ago
PART TWO: Testing the sharpness
your arm???
goaapie 1 year ago
Why the fuck are you throwing your knife on the floor? Did your parent ever told you how dangerous it is?
hello838 1 year ago
This test although valuable does not at all test the "hardness" of the blade. Ceramic is very hard, there is no doubting that, but the downfall to ceramic is that even after firing it is still much more brittle than steel. This test is more accurately testing the toughness or strength of ceramic which is its ability to resist or the total amount of energy required to cause failure.
walkerdee 1 year ago 2
dude that knive has a Moh rating of about 7.8 to 8.2 dropping it from a meter isnt going to do a thing
johnhalliday3 1 year ago
hey you dont have something better to show? it comes to my mind this one is 62nd's knife, the rest in a dustbin, not shown here hmm?
ahmad2444 1 year ago
@Frozenlamer The Kyocera is also my favorite. I got it a few weeks ago at Chef Depot . com
There is a great ceramic knife sharpener on the same page as the Kyocera knives.
chefgiovanni 1 year ago
The Kyocera is my favorite. I got it a few weeks ago at Chef Depot . com
chefgiovanni 1 year ago
Why is this guy ruining his tile?? wtf?
SuperUnic0rn 1 year ago
cool knife i have the S&W Double Lockback Folding Knife
trueswords(dot)com/double-lockback-folding-knife-p-3684.html
Bribedpayton34 1 year ago
why?
NikeH18 1 year ago
brilliant video and done exactly how it should be done!!! everybody knows ceramic knifes are extremely sharp and hold an edge for a long time but nobody knows how well they work under stress like this.... and you have proved it!
DJJimCowley 1 year ago 15
Very nice demonstration man now im sold :)
And to the idiots with negative comments ... dont you fucking want to know about how good the knife is before taking out your 50$ ? This is better than any reviews
Nickiewoo 1 year ago 3
stupid ... what's the point.....honestly.. those knifes are wonderfull you should try to cook with it, not just try to break it..
amicka75 1 year ago
@amicka75 The point is that ceramic blades are very brittle, and this was just a test to show that the blade will not break if it falls off the counter.
RebelWrestler45 1 year ago
@amicka75 Are you really that dense?!?! He's doing it to prove a point. Most people have the perception that ceramic knives while able to hold an edge very well will break at the slightest drop or jarring of any kind. He has proven that is not the case. As someone else said this is better than any knife review where they just talk about it or cut with it. He actually risked his very expensive knife to prove a point and show people it's not as breakable as people think.. Excellent video.
Soulrider2012 1 year ago 3
@Soulrider2012. I totally agree with you. I have 4 Kyocera Revolution knives in white: 14cm Santoko, 13cm Slicing, 11cm Veg and the 7.5cm Paring knife. I have used them daily for a long time with no problems. I have never put them through this type of stress though and will continue to be very careful. I would freak out if this happened to any of my knives, ceramic or steel. Kyocera knives are no good for hill billies, wannabe Rambos or idiots though. Great knives and a brave demo.
AndyinMokum 7 months ago
LOL
You do know when the term hardness is used it refers to what it can cut and what it can't, not whether it will break easy or not.
My mom's friend learned that the hard way when he put a diamond in a letterpress LOL
kragier 1 year ago
I have the same knife and I wouldn't throw 40£ on the ground xD
M346F22 1 year ago
really good tests. fuck those other guys and their negative comments
kitsurubami 1 year ago
You are not testing any hardness, you are testing impact toughness. And stabilized zirconia (this blade) are the best ceramic in this matter.
leonardoulian 1 year ago
This has been flagged as spam show
found some ...chefdepot. net/kyocera .htm
and the sweet KYOCERA pocket knives...
chefgiovanni 1 year ago
Slovakian alpha tester :D
TomPro4 1 year ago
omg... ;/
Malea25 1 year ago
its not really like a ceramic like what your thinking of, its more like diamond then ceramic, its made out of zirconia ( i thinks thats how to spell it), which is a mineral. they supoer heat it so that way it crystalizes and turns harder than steel
theillusionist6677 1 year ago 2
@theillusionist6677 Ceramic items are made of zirconium oxide. You're just being silly.
m415mike 1 year ago
@m415mike yea, but do they super heat all ceramic items to 5000 degrees + , and keep an insane amount of preasure on them over night, thats a similar process to how diamonds are made in the earth, so like i said, its more like diamond the ceramic
theillusionist6677 1 year ago
@theillusionist6677 No, it's ceramic. It can't be more like something else than itself.
m415mike 1 year ago
@m415mike really, look it up, and normal ceramic can be broken much more easy than that
theillusionist6677 1 year ago 2
@m415mike
It's not your everyday ceramic, it's similar to the kind of ceramic used in machining tools to cut temperd steel. And that does NOT mean you should cut steel with your ceramic knife.
inzen86 1 year ago
@theillusionist6677 But steel for e.g. high speed steel is more ductile and flexible so it can undure shock much more ceramic, therefore all the katanas are made of steel rather than ceramic.
FeelFree3 1 year ago
@FeelFree3 yea, but i dont think they had high strength ceramics in feudal japan, ceramics thos strong just started being put in use, but uour right about the flexability, but only the core of the katana has the flexability, the outer core is ( please forgive me i forgot the term for the steel) the strongest steel known to man because of the process used to make it.
theillusionist6677 1 year ago
ur never gonna break tht knife doing tht...im a machinist and we use ceremic tool bits to cut metal
cc671913 1 year ago
Thanks. Nice to know it won't break.
L00NGB00W 1 year ago
are you guys stupid? this knife is made out of ceramic.... its very sharp and holds a great edge, but also very brittle when you drop it or smack it into something
tommie314101 1 year ago
@tommie314101 that comment only counts for the retards
tommie314101 1 year ago
It's ceramic. A drop test like this IS a good test.
transdrole 1 year ago
wtf "testing"
u retard you are just droping the knife...
harpantonio 1 year ago
I wish everyone would stop repeating that the ceramic material is 2nd hardest to diamond, yes we know. Acting smart with their youtube knowledge, everyone here has searched up "Kyocera" on youtube.
chepsy 1 year ago
"testing of blade hardness" lol, testing the hardness by dropping it on the floor? you just tested it's toughness son, not hardness
ChronicMist 1 year ago
this vid is so dumb.. nobody expects a knife to break wen u drop it like that, especially not one of those..
HotRocksAndHardRock 1 year ago
Material claimed so hard deserves a test drop from 90m height rather than 90cm, but at least you proofed that you are very rich... Nice!!
BTW, "2nd-to-diamond" sounds pretty much sales talk, can you do a throwing test as well? Or mail me the knife if you are busy, I can do it for you...
JasonECI 1 year ago
Nice but proofs nothing... Body of those knifes might be second hardes material but the cutting edge is so thin (to be sharp). Under close look that knife certainly small cracks and teeths... so after test it's nice hard almost indestructible white plank in shape of a knife wow!
pojebanymeno 1 year ago
lol throwing it around won't hurt it. it is made from the 2:nd hardest material in the world. the only thing that is harder then that blade is diamond:P
fearsomemupp 1 year ago
That's exactly why throwingit around would hurt it. It's very brittle and would crack under sufficient pressure, unlike softer materials like steel which just flex and absorb the shock.
m415mike 1 year ago
@fearsomemupp actually, the harder the material, the easier it cracks. tool steel fully hardened, before the tempering process gives it toughness, will shatter like glass if dropped on hard floor. glass will scratch iron, so it is harder, but needles to say, much more brittle. so, yes, a very hard ceramic knife is much more brittle than a steel knife.
kalevraa 1 year ago 2
@fearsomemupp Unbelievable, that refers to it's ability to hold an edge. That same property makes it very brittle and very likely to break under just this circumstance. So yes, this is a very good test to do and he is to commended for risking his very expensive knife to prove that while ceramic is brittle it is not quite as breakable as some people think. Most people think a ceramic knife will break if so much as bump it on something or drop it off the counter.
Soulrider2012 1 year ago
lol throwing knife
rickpj92 1 year ago
well this proves that it wont brake wen it falls
uzemakistyle 2 years ago 3
yep, that a big thing for a ceramic knife :P
ChronicMist 1 year ago 6
И в чем прикол? Если хотели показать прочность ножа то надо было ударить лезвием по лезвию другого ножа.
Знали бы вы сколько раз падал на кафельный пол нож моей бабушки и сколько ему лет :)
Zetus84 2 years ago
Comment removed
danyperky 2 years ago
Comment removed
danyperky 2 years ago
нож керамический, вот в чем прикол
danyperky 2 years ago
This comment has received too many negative votes show
woopdee fucking doo youre dropping it off a COUNTER... who gives a flying fuck... that doesnt prove shit other than youre a dumbass who wants a name on a video on youtube and that you have no moral values of your home.
nikkolaus 2 years ago
Um WHO doesn't have moral values mr., I'm cursing @ random strangers on youtube because my mommy didn't hug me enough as a child! LOL!!
SOOooooo sad!
YEAH, YOU SEE HOW YOU SAD!
You need a hug bro???
LOOooL!
curtisskeete 2 years ago
Thank you for this video! Very reassuring for us Kyocera owners...
letigre1980 2 years ago 4
i have heard of ceramic gas engines
how about ceramic handgun?
datzfast 2 years ago
there actually is a ceramic handgun, the Glock22 is about 90% ceramic with only the rails being metal.
pretty sure anyhow ^_^
DarkLordVincent 2 years ago
@DarkLordVincent
Sorry but it's about 0%. Glocks and many other handguns (mostly pistols) are made using polymers (synthetic plastic) for the frames. Slide, barrel, springs etc. are still types of metals.
abruceames 2 years ago
thank you, I was under the impression the G22 was ceramic however a polymer would make as much sense.
DarkLordVincent 2 years ago
Comment removed
kingjamez80 2 years ago
@datzfast there are ceramic handguns. out of our pay grade though. pretty regulated too, for the same reason that kyocera adds metal to this knife, so you can't smuggle it onto an airplane.
happymerc 2 years ago
@happymerc true, it would also have to have ceramic ammunition.
datzfast 2 years ago
@datzfast well.....i know for a fact brass isn't magnetic, but i'm sure the xray machine will pick it up. so ya, i'm not too sure what "the powers that be" would do to get around that. either a harder plastic or like you said ceramic would make sense. i'm thinkin we shouldn't talk too much about how to sneak a gun onto an airplane lol. i'm not a fan of some threatening anonymous phone calls.
happymerc 2 years ago
i would laugh if that went through your foot
Romo2794 2 years ago 45
The problably tested it on rats to see wether it does the job right ;).
But I guess that most people are afraid of testing their stuff for the benefit of all of us. I can't blame you asteroceras, if you pay good money for these knifes you probably would think twice before doing something like this.
But anyone deserves credit for this, but there is no comparison between dropping knifes (material damage) and taking cyanide (human damage).
yedoce 2 years ago
You are not testing the HARDNESS, but the BRITTLENESS. You are lucky the blade did not chip or shatter. Even diamond can be shattered by a hammer, though it is the HARDEST material known. Don't drop your knives on purpose!
asteroceras 2 years ago 5
Why lucky? This guy is deliberately testing the brittleness of ceramic knifes. It's probably one of the most interesting clips about these kind of ceramic knifes on youtube. He is dropping it on purpose to convince us that the knifes are quite tougher than we've thought. How are you going to find out wether or not the blade will shatter? Just by trusting what the manufacturer has to say about it? He did a fine job by testing it and he didn't get lucky, because the whole point was to find out.
yedoce 2 years ago 3
Hey! The manufacturers of Cyanex, The Fast Action Cyanide, say that Cyanex could be lethal if swallowed. But you can't take their word for it! There's only one thing to do: test it with a YouTube vid.
asteroceras 2 years ago 3
Exactly!
But it is good to know that the knife isnt so brittle.
Silent13Assassin 2 years ago
lucky? :-) he was testing the knife, why should he be lucky? yes, terminology was probably bad, but otherwise, great test!
FeIixF 2 years ago
thank you for doing this test for everyone to see. I have a broken blade, smaller than yours. The user broke the edge by trying to cut frozen vegetables. The lateral shear force chipped 1cm of edge.
six50nm 2 years ago
I say try bending the blade on the counter top.
MisterBaz1 2 years ago
It's a knife. Stop throwing it around and CUT something!
Burkemaster 2 years ago 57
@Burkemaster its a ceramic knfe. its more brittle than a steel knife. he's showing that its very durable and won't break from a fall.
19trh 1 year ago 8
@Burkemaster Why? It's a "crash test".
cortkatanakx1q 11 months ago
want one!
scareface999 2 years ago
Pamätám si, že mi niekto zobrazené test s keramickou platňou. Keramické to ťažký!
kanarakuotoko 2 years ago
That was painful to watch. Nice test though. I still would stay away from cutting through bone and such. Imagine the luck of someone without it digesting a ceramic chip of the blade. lol
EaziD 2 years ago
Man and I thought I would never get one cause they break so easily, but proven here that that was a myth!
Aegistance 2 years ago
that's it...I'm getting one tomorrow!!!
rieg79 2 years ago 4
I have some great prices on my new designer ceramic knives and my handles are Eco Luxurious Bamboo!
rawbryan 2 years ago
what if sumone was on da floor or ur foot
ajabrams95 2 years ago
Maybe it is just the video quality, but it looks like plastic.
MisterBaz1 3 years ago
It's ceramic.
TheKpow 2 years ago 3
暴殄天物
京瓷最高
yamap1123 3 years ago
Thanks for showing that so that we can see how chip and break resistant they are to dropping, but man, 00:35 makes me cringe every time!
heiyoulianglaohu 3 years ago 2
Sorry dude all you're testing is the cleavage/fracture of the blade. Hardness is something quite different.
dnichl 3 years ago
Why? Why would you do that?
tastygarlic 3 years ago 3
... LawmanWu you are fucking stupid doode... its ceramic... and im pretty sure if you where yo drop a ceramic object it would break... so thank you Keramickenoze for showing the durability of the ceramic knive. I'm currently trying to find a good set to buy and im jsut scared to buy the atm because they cost a shit ton of cash and im scared to break them :(
100pcirish 3 years ago
You don't have to worry about breaking it until you start chopping trees with it. which is something i'd suggest not doing with a normal knife either.
This stuff is graded second toughest material on earth. Diamond being the strongest.
samipso 3 years ago
I can say that there is no any knife out of there will be damaged by such action.metal, plastic, paper, timber, banboo ect.
LawmanWu 3 years ago
Check out my new ceramic knives on my website the best prices and quality guaranteed!
rawbryan 3 years ago
This comment has received too many negative votes show
This video is nonsense. 90 percent of happening in Slovakia is absolute nonsense. This stupid video represents it really well.
LonelyWalker11 3 years ago
this video shows ceramic knives don't break when dropped off a counter. That's the only thing he's trying to show. Give ceramic knives a chance, they are very well worth using.
chefparker74 3 years ago 3
ur nonsense becuz u dont use ur brain
DarkAzoroth 3 years ago
I don't get it. Is this showing superiority to traditional knives? No knife would break, why is this special?
boxsterwelby 3 years ago
It's ceramic. People say they're incredibly sharp, but chip/snap easily.
Azraelfromgamefax 3 years ago 2
yeah, but once again showing the superiority of cermic has nothing to do with this test that the cheapest steal knife could do. Show me some test data showing that it has less friction when cutting or slices with less resistance. This shows nothing except crappy ceramic knives break when dropped.
boxsterwelby 3 years ago
Way to miss the point. The aim of this test is to disprove that ceramic knives are fragile. You said yourself "showing the superiority of cermic has nothing to do with this test".
You may as well have said "Yeah but theres no skwirrals in it lol"
Azraelfromgamefax 3 years ago 3
I didn't miss the point! I know ceramic knives are superior. I'm saying to prove superioirity against a metal blade this is not the way. This test shows metal blades are superior. It doesn't do justice to ceramic blades.
boxsterwelby 3 years ago
But that's not the point of the test. Many people disregard ceramic knives because they're known to chip easily. The trade-off is blade with a sharper edge that holds for longer. This is common knowledge. What this guy is saying is "well I thought I'd test the claim that if you drop the blade, it will snap or chip", and that's what the video is about, that's what it does.
Your complaint is that it's not a video about something else, which doesn't make sense.
Azraelfromgamefax 3 years ago 2
appreciated. However, the bigo argument is that ceramic knives are superior in every way. which they are. Excecpt for the shatter issue. But, even now it's well known that ceramci knives can handle dropping. so, what's the point? We all know ceramic knives are sharper, harder, and shatter resistant. It's a useless test.
boxsterwelby 3 years ago
"it's well known" - its not ...
Volodus 3 years ago
It's already proven officially it's harder than steel!
FeelFree3 3 years ago
yes, but this test shows no superiority. that's my point.
boxsterwelby 3 years ago
yes, but your comment shows no superiority. that's my point.
DarkAzoroth 3 years ago
damn i would never ever in my life throw my precius knife that is way cheaper then ceramic XD
it would have been funny if it broke
xxxz3ldaxxx 3 years ago
well that dispells any fears that i had.everyone says they'll break if ever dropped! thanks for the post!!!
utnacmit 3 years ago
Wow. Steel or ceramic, I don't have the financial luxury of being able to try my hardest to destroy my kitchen utensils. Rather than break it, you can always donate it to me! :-)
heeremama 3 years ago
That hardly qualifies as "trying my hardest" to break it. Its just a test to see if an accidental drop will shatter the blade.
wolpack1116 2 years ago
retarded knife
cowsrcool7658 3 years ago
shit wouldnt want that landing on your foot slice your toes of even with the shoe opn lol
but kinda of lame
TOMMASCRAWLEY 3 years ago
built like a glock
zorkd 3 years ago
+10 points for you. +1 comment rating!
PWNAN8R 3 years ago
wow (sarcasm)
thebrick60 3 years ago
This fellow must have spent a long time developing this test. don't try at home pros only can do this.
diggumsmack2 3 years ago
The knife you have:
It was old version with Pointed tip, that broke and was re-grounded ? or
New version with rounded tip ?
- After the test have you observed any chipping, denting on cutting edge ??
710HS 3 years ago
These knives are new type with rounded tip.
Volodus 3 years ago
Good work:)
hiendkitchen 3 years ago
cool, going to get one
procekim 3 years ago