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Robs Knifeworks
Australia
เข้าร่วมเมื่อ 6 ก.พ. 2022
I started late in life to become a knife nut. Now I enjoy repairing, restoring, sharpening and using Japanese kitchen knives. I am a self taught painter, enthusiastic about all things art.
Hyper sharp and beyond. Knife sharpening for a few.
r sharp and beyond knife sharpening covers tips on whetstone selection, the pros and cons of going beyond what's generally necessary in knife sharpening. An open and informative insight into the ridiculous.
Chapters
00:00 - Intro
1:26 - Positive aspects
2:01 - Negatives
3:12 - Suggestions
4.34 - Introduction to the rest of the video
6:20 - Sharpening starts on Shapton 220
21:53 - Summary and stropping
23:15 - Practical demonstration
#knifeskills #knifesharpening #slicing
Chapters
00:00 - Intro
1:26 - Positive aspects
2:01 - Negatives
3:12 - Suggestions
4.34 - Introduction to the rest of the video
6:20 - Sharpening starts on Shapton 220
21:53 - Summary and stropping
23:15 - Practical demonstration
#knifeskills #knifesharpening #slicing
มุมมอง: 1 160
วีดีโอ
Yasai and Furutsu seek revenge on Musashi, but will it end well?
มุมมอง 5914 วันที่ผ่านมา
Yasai and the evil genius Furutsu seek revenge against Musashi, the famous Japanese fruit and veg slayer. How will it end?
Japanese deba gets a makeover
มุมมอง 32414 วันที่ผ่านมา
Japane #knifesharpening #knifeskills #knifesharpner #chefknife #knifesharpener se deba gets the Royal treatment
How to restore knife handles. Can you restore them yourself? Yes you can.
มุมมอง 28521 วันที่ผ่านมา
Do you have knife handles made of rare wood or buffalo horn and they don't look that good anymore. Want to give them a freshen up. Maybe you've bought a knife with a handle covered in mud, food or blood sweat and tears. Here's the video on how to make knife handles new again. Contents of this video 00:00 - Introduction 1:27 - Handle removal 5:34 - Pakka wood handles 12:11 - Octagonal, laminated...
Do I Need This $50 Kitchen Knife
มุมมอง 28321 วันที่ผ่านมา
A review of the budget friendly Noshu Magoroku Santoku. We all want more from our hard earned money so see how this knife stacks up
Learn How To Sharpen A Deba.
มุมมอง 168หลายเดือนก่อน
Learn how to sharpen a deba from someone who has sharpened 100s of debas. Learn insights on one of the most unique knives in the world.
The paper cut test. Is it the ultimate test?
มุมมอง 277หลายเดือนก่อน
The paper cut test, it seems that you either love it or hate it. Rob puts the knives and paper to the test.
Seki Magoroku nakiri knife unboxing and review
มุมมอง 231หลายเดือนก่อน
I'll unbox a Seki Magoroku Wakatake nakiri and give a straight forward review. I believe there may be a few surprises in store.
Is this the sharpest knife in Australia?
มุมมอง 943หลายเดือนก่อน
This 40 pitted nakiri still has what it takes to hold it's own against modern steels. First whetstone Morihei 1000, Naniwa 3000, Morihei 6000, Imanishi 8000
How to make a leather strop and get your knives super sharp. #knifesharpening #diy #knifemaintenance
มุมมอง 232หลายเดือนก่อน
How to make a leather strop and get your knives super sharp. #knifesharpening #diy #knifemaintenance
Easy knife sharpening for someone who doesn't want to sharpen knives but must #knifesharpener
มุมมอง 819หลายเดือนก่อน
Easy knife sharpening for someone who doesn't want to sharpen knives but must #knifesharpener
Knife Sharpening 101 #knifesharpener #chefknife #sharpening
มุมมอง 6242 หลายเดือนก่อน
Knife Sharpening 101 #knifesharpener #chefknife #sharpening
10 cent rescue knife gets razor sharp #kniferestoration #japaneseknife #knifesharpening
มุมมอง 5022 หลายเดือนก่อน
10 cent rescue knife gets razor sharp #kniferestoration #japaneseknife #knifesharpening
Great video. Thanks!
Thanks heaps, glad you liked it
I understand an excellent test is to cut through a whole, ripe avocado without squashing the flesh under the stone.
Yeah, that would do it.
My arm is aching just watching...
Another really good test is to cut up really pungent onions. The more they make you cry, the more dull your knife is. The less they make you cry, the sharper your knife is.
Sure is. Thank you for taking the time to comment
If you can't shave with it I highly doubt it's Hyper Sharp.
You can shave with it.
Oh get real.....What does Hyper sharp even mean. The only Hyper Sharp knife probably be the one you can actually cleanly and smoothly shave your face with. And yes there are TH-cam videos of people actually shaving with a knife and there is one of someone shaving with an Axe.
Thank you for your comment. Yes, you can shave with it. Hyper sharp is just a term.
@@robksknifeworks Hyper Sharp is kind of like click bait. But it would be cool seeing you actually shave with it Thanks.
@@BennyCFD At my age it's probably a liability to shave with that on camera. I prefer a Schick so that I don't shave off multiple layers of jelly neck. ;)
I've been waiting for an in-depth video like this from you Rob. Incredibly informative with invaluable practical advice. Thank you for sharing your expertise!
Thank you Paul, you're very generous in your comments
I wonder sometimes if the sharpening experts realise that hyper sharpness will not last past the first cut. Is that for real life use ?
Hi, I think it depends a lot on the individual. Hyper sharpness can last beyond the first cut but certainly won't last as long as more practical sharpening. I for example became obsessed with sharpness and I don't have a problem admitting that it is an issue for me. Another point I would raise is that I'm trying to get the best out of myself and my knives and I'll also admit to having wrecked several knives along the way. You could also take the view similar to motor racing, the engines in those super fast sports cars are designed to be rebuilt after each race. Hyper sharp may not be practical nor necessary, thankfully for me I don't mind testing the limits of myself and my knives.
@@robksknifeworks Ok, you then agree it's not for real life use... It's like the world championship of egg throwing/catching. Good video though
@@gilbertngo-ngoc-dong5814 😁
@@gilbertngo-ngoc-dong5814 I just published another video "Hyper sharp and beyond" that you won't enjoy much either. I think it does have some purpose. It's just not everyone's cup of tea. I LOVE my hypersharp nakiri. Some will, some won't.
@@robksknifeworks Don't get me wrong Rob. I admire the level of sharpness you can put on your blades, it's good for a video performance and kind of competition with others but as I said, and you agreed, it does not really help in real life kitchen... The fine edge will disappear as soon as you cut anything on a board and you will be left with a sharp but not hyper sharp knife. If you can sharpen a knife, cut some serious material for a while and still shave afterward without touch up, then you become more than interesting. Hope my comment will open some avenues for your future videos. Keep it sharp !
What brand stones you prefer ceramic?
I don't have a preferred brand. Currently I have a range of stones including Shapton, Morihei, Imanishi and Naniwa. I have three 12,000 grit stones and feel each one has its place. It depends on the circumstance as to how much mud I want or don't want. How hard or soft I want the stone. Feedback plays a big role.
how many strokes on the 1000 grit stones and how many strokes 3000 grit stones
It depends a lot on how things when on the 400 grit stone. I often do 100 per side on the 1k and 3k. The 1k stone is important in that you take time on it to make sure that no micro chips have developed or been exposed. I use paper to test the edge. Paper will collect on the edge and it then becomes a bit easier to know exactly where the edge needs more work.
Strokes don't matter if you're developing a burr.
thanks mate spot on
Thank you mate. Great to receive remarks like this. Have a great weekend.
Awesome !!! Great Explanation and Example!! Bravo!🙌
Thank you for the compliment and thank you so much for taking the time to write. It's great to get this sort of feed back. Thanks again, Rob
Great informative video
Thank you so much for your compliment and taking time to say so.
Great video. Thanks for the guidance on this. I'm going to try your technique of wrapping the fingers around. And greetings from the US.
Thanks for taking the time to comment Michael, I really appreciate it and the compliment. I hope wrapping your fingers around the handle or supporting it makes a good difference for you.
It’s refreshing to see someone highlighting more budget-friendly options, a lot of people don’t want the responsibility of maintaining high-end Japanese knives; they just need something that gets the job done and can be tossed in the sink without a second thought. Kiwi knives seem to have quite a following. It would be interesting Rob to see what kind of edge you can apply to one of their models.
Hi Paul, thank you so much for your comments. I would love to give sharpening some Kiwi blades but simply don't have any. Give me a brand to look up and I'll see what I can do. Regards Rob
not a good lover of stamped knives but they are getting so good these days. keep up the this channel and members will follow ❤
Stamped knives are a thing now. When you look at what's on the market at least Japanese stamped knives are ahead of the rest IMO. One of my favourite knives is a san mai bunka. Stamped knives and san mai are ideal for us people that can't afford the high end stuff. In my channel I hope to show case what a lot of people call garbage. Thanks for your comment mate.
Surreal
Thank you.
Thanks for citing the number of strokes. I would not have thought that it would take as many as 75 strokes on each side. Now I'll stay with the process instead of giving up. Tom
No worries Tom. The number of strokes is more or less dictated by 1. The depth of any chips (the paper cut test - see separate video, explains that). 2. Whether you've got a good apex 3. Scratch marks left by the previous whetstone. Because I do a lot of knives from scratch because they have rounded bevels and chips, sometimes I start on a 220 grit, it the blade is really bad make that 110 grit. The lower grit stones can really leave a lot of deep scratch marks on the bevel. Ideally they should come out for a number of reasons. On knives that are in reasonable condition, sometimes just 50 strokes each side on a 400 grit stone is all you need. Hope you get through it Tom.
@@robksknifeworks Thanks for such a generous reply, Rob; I appreciate it. So, am I right in thinking until you can feel a burr on the opposite side - there is no point in changing to the other side? I can see how you would feel a burr on the coarser stones but once you go to 4, 5 or 8 thousand should you wait till you feel a burr on the other side? Thanks again, Tom.
@@tomwoodworker Tom, I think there's an advantage to working evenly. If you only work on one side of the blade you risk moving the centre of the edge over to one side. Some people find that desirable but just for the sake of ease, I tend to do the same number of strokes on each side. The centre or alignment of the edge may move a little if you apply more weight with your left hand for example. Or you may take slightly longer strokes on one side. That's why I start with 50 per side but I do check regularly after that to make sure I'm keeping the edge in the middle of the blade. The burr will come when you get that apex. Once you get over about 3k the burr becomes less and less. You would probably never feel a distinctive burr over say 5k. Once the burr has been developed you have an apex so you don't have to keep creating a burr. After 5k or thereabouts, I start to use newsprint to clean the edge. Hope that helps.
@@robksknifeworks It very much helps, Rob, and thank you again. Tom
*Newsflash...This is not how Pro's sharpen knives*
Never claimed to be a pro and despite that, it works well for me. Perhaps you could show us on your channel?
Now I have to find two Australian coins off ebay. Thanks for that mate.😂😅
Dreadfully sorry for that mate. Hope I can make it up to you one day 😂😂😂
Your advice is highly appreciated. Thank you, kind Sir...............
Thank you so much for your comment, it's greatly appreciated.
What is the reason for wobbling the edge on the strop, to weaken the burr?
I use newsprint on my higher grit stones. So on anything over 5k, I finish the blade on newsprint to hopefully clean up the edge and remove any remaining burr. On the lower grits, I use a hand held leather strop and do the same wobbling action.
What are your stone progression for this Rob? Thanks jas NZ 🌏🌿🌿🌿🥝🥝🥝🏖🏖🏖
OK, so starting on the back of the blade with 3k. Then on the bevel 400, 1k and 3k. Then a 6k Morihei on both the front and back, followed by 8k and 12k. Regards Rob
Waste of bandwidth get a job
I like my surgical black Arkansas. Loving your channel Rob.😊👍🔪🔪🔪🌏🌏🌏
Thank you.
what is that speckled stone? 😊
That's a Morihei 6k. It's part natural and part synthetic. Probably my fav
@@robksknifeworks Thanks for letting me know 👍
What was the stone holder you used rob? Its a good height
Hi Jason, I made that myself. It's two pieces of Merbau decking timber with the chamfers removed and then glued together. I've put an end cap on that sticks up about three millimetres and then varnished. You can get some sort of tape that you can put on underwater in Bunnings it's about $20.00 a roll and it stops the holder skidding across the sink. Not perfect but when you're on a budget, it works just fine.
Meat cutter here, and over 20yrs on sharping knifes. I will grind through 2 knifes a year, that is 6 or 6 1/2" flex or standard. It is what I chose, on neck meat I will use a 6" (5" now) standard that will be a ice pick by than. Steel clean, Hot water with soap, knifes ect. I did sub so well see.
Thank you for your subscription William, I really, really do appreciate them. Meat cutters / butchers knives seem to be different kettle of fish compared to sharpening chef and knives for the home kitchen. I have sharpened butchers knives and it never ceases to amaze me how those guys can not only take an edge off in a few hours, within weeks their knives are changing shape.
Brilliant... I am about to have a go at doing this myself for the first time. This was really helpful, thank you.
That's awesome, take it easy, it's not a race.
Thanks for demonstrating. I'm a butcher and used to take my knives to get sharpened professionly. What I didn't like about that was that my my knives would get thinner and thinner. A couple of old time butchers on Facebook suggested I get a multi oil stone and that's what I did. I also got a new knife and I got it razor sharp on the oil stone.
Thank you for your feedback.
Angelolepore do you mean the height of the knife is decreasing, and therefore gets smaller overall??
Not only the length, but the girth as well. I like a heavier knife and i find that hand sharpening works better now@shadyeskimo
Thanks for this fantastic and practical demonstration! It was refreshing to see how something as simple and accessible as a piece of paper can provide valuable real-time feedback on edge sharpness. I appreciate how you broke down the process, showing how small chips and flat spots are revealed without the need of an expensive sharpness tester. This is a great tip for those of us who want to improve our sharpening skills without breaking the bank. Looking forward to more insightful content like this 👍
Thank you so much for your comments. I'll keep doing my best.
An excellent demonstration! I think I worked out several things from the demo on what I've been doing wrong and definitely like the explanation on the way to grip the knife so we can get the bevel on the stone right along the blade. I've been using one of those "You beaut easy sharpening" tools, but I have wondered if it worked consistently along the blade. And it's fantastic to see some great Aussie content on TH-cam! Good one, mate!
Thank you. I'm glad you got something out of it.
I've been sharpening edges for 50 years. I have the skill to sharpen as Rob is showing. it DOES take experience and skill. some of the comments are from folks that sometimes it works and sometimes it doesn't. They can LEARN the skill, but they don't have it yet. As Rob says, if you are not making a burr, you are not going to get it sharp. I have about 100 gouges, maybe 30 planes, 50 chisels 30 or so carving knives and scorps, ETC to keep sharp. I have diamond stones, water stones, CBN wheels (and stones) and buffers and polishers etc. ALL of them can and do work. They sure do a MUCH better job than most / ALL pull thru sharpeners that households have. Those make the knife cut well for a few days, but in the end, slowly destroy the knife. As to jigs? There ARE jigs that do work well. They can do curves very nicely too, contrary to what some comments, But as Rob says, IF you are skilled, in general the jig takes longer to set up. Still it usually can produce a very "professional" looking edge. For myself, I sharpen enough things to have finally gotten a 72x2" belt grinder. With such, burning risk is close to nil. And having buffers, and grits to 2000 and EASY to maintain angles, it makes sharpening extremely fast. (I sharpened 20 knives from poor condition to perfect in less than 1/2 hour. (A group of friends brought their knives to me last weekend) Personally, I think the one thing to help the average home is learning how to use a steel. IF you do learn such a simple process, you can keep your knives MUCH sharper for longer.
Thank you for taking the time to write so much Paul, I really do appreciate it.
If you're trying from TH-cam, you're going to ruin a lot of sharpening materials on both ends. If you're self teaching, be CHEAP. Learn how with garbage. It's unwieldy and horrible but If you can make garbage do what you want, you're on the right track.
I sm not there yet with my sharpening 😆
Keep trying Kris.
@@robksknifeworks Trying to develop a feel for the edge, an ear for sharpening and practicing angle consistency. Using a finger to maintain angle Ive worn through skin 😂 Did a scandi grind Mora last and was surprised at the large angle compared with the kitchen knives. Thanks for sharing your instructive, informative and motivational videos 👍 I’ll keep grinding 🙂
Great vid, very interesting. I recently got some Shapton water stones and while they are very nice, I'm not very good with them...yet. The puzzling thing is, I used my dads old oil stone that has been around for ever and, I got good results on it. I really don't know why. I will keep your technique in mind and keep trying.
It can take time. Keep working on it.
Thanks for the demonstration Rob. I have various grades of machinists stones and I'll give it a go with the missus' kitchen knifes. There's no such thing as too sharp....
You're right. Good luck with it
How else are you meant to open it?
I'm open to suggestions. My wife uses scissors
For all those people out there that have bought their food from the supermarket get it home and not know how to open it.. They died of starvation.. maybe that's why you've got no likes or views 😅
Got a few coming on now mate
push forward lift the blade and start again
Prefer my method of lowering the blade on the push. For the tip, I'm starting to use much smaller strokes to maintain better consistency.
Why lift? Abrasion occurs in both directions.
@@dongkhamet1351 Sure it does but I find this method give me better control. I'm one of those people that struggle to walk and chew gum at the same time. One thing at a time and for me it works really well.
@@robksknifeworks from what I saw you were working the edge in both directions. My question was for the OP because my understanding of their statement is that one should only be working the edge on the forward stroke, then raising the blade off the stone ("lift") to return to the starting point, then repeat. Perhaps my understanding of the OP's meaning is mistaken. As for your technique, once more supposing that I have understood correctly, I find that interesting in that in convexity an edge I would tend to lift more on the back stroke. Strokes for folks, I guess! :D
dissagree for the reason on the back swing you are taking the edge off push forward and dont sharpen backwards
I'm not actually sharpening backwards. I'm setting up for the next stroke. It works teally well for me.
While that "sounds good", it is an old wives tale. Sure, if you pulled metal toward the edge and leave it, that is not great, but a burr is necessary to form and you need to remove it anyway. As a professional, who makes knives on a 72" x 2" grinder, you definitely have times when you run the machine backwards. No problem.
Very nice, if I had the patience to sharpen "that Hyper sharp", I probably would but who needs it that sharp any way? Thanks for the video.
Same thing my brothers say. Why that sharp? Why does a dog lick his okd fella? Cause he can 😂😂😂 thanks for watching.
@@robksknifeworkshaha brilliant!
Me
Craftsmen that work with sharp tools for example. Just because a kitchen knife was used in this demonstration does not mean that's the only thing the taught lesson applies to. The shape and details might vary, but the principles stay the same.
Holy sht balls! I suck at sharpening so bad.
😂😂😂😂😂
The edge/apex of a knife actually gets work or strain hardened (see chatGPT or google), ideally you want to use this harder material to create your new edge as it will stay sharp longer. The process of creating a burr removes (all or some of) this layer of harder metal, which means creating burrs is not the optimal way of sharpening. Ideally you would need to visually inspect the edge when you are cutting close to the apex, but the apex/edge of a sharpened knife is quite small at around the 20 nanometer range (for a razor blade or scalpel) so you need a scanning electron microscope (SEM) to view the edge. Light based microscope resolution tops out at about 200nm due to diffraction limits, so it is almost but not quite good enough. There is good information about this on the internet if you search for it (links can get out of date so better to search).
what stone grits were used?
First whetstone Morihei 1000, Naniwa 3000, Morihei 6000, Imanishi 8000
@@robksknifeworks Thanks for getting me motivated. Just made 5 kitchens knives less dull then before 👍 Will practice some more (on outdoor knives) before I tackle my only Japanese knife (santoku). I used 700-1500-3000 and 8000 + a way too short stropping board. Thanks 👍
I reckon you'd love a good diamond stone, so fast, less strokes, so less error as well
I have a 110 grit and 220 grit stone to do the fast cutting. Diamond stones are also pretty good for that. Have you tried the Suehiro or Shapton 220? The Suehiro is very hard, where the Shapton is quite soft and muddy.
@@robksknifeworks no only tried FMT diamond stones
Good on ya, mate ! ☆
Thanks mate.😁
Good technique. Not fussy and very effective.
Thank you. I will say it works well for me.
for trigger sears I made one from mdf. Will make a larger table model for edges 👍
Good idea. I know that some people use balsa.
Creating a burr is not essential for getting a sharp knife. A burr is a byproduct of staying too long at sharpening on one side of the knife and not alternating strokes. You can get a sharp knive without creating a burr if you know how. BUT it is for sure easier using the burr method especially for beginners... till it gets to alternating strokes for burr removal.
Personally, I prefer creating a burr unless the knife is just getting a touch up. Maybe not "essential" but eases my mind. Beginners or newbies gain the most probably. Having said that as a knife sharpener to my local market, creating a burr gives me the confidence that my work is not flawed. Perhaps I'm a creature of habit.
I think it depends. A knife in pro hands is often used for a specific job and can get dull in just parts of the knife. Without a burr you can end up with an unevenly sharpened edge without realising. I sharpen a lot of knives, mostly Japanese hand made 1 or 2, and generally prefer to get an even small burr, go through my stones and hone. I like Rob's explanation.
Oh dear-somebody really doesn’t know about knife sharpening - the bear indicates that you are creating an apex, and if you Apex correctly and sharpen from there, the knife will remain sharp much much longer - I suggest you go and look at outdoors55 it’s all very, very simple
The edge/apex of a knife actually gets work or strain hardened (see chatGPT or google), ideally you want to use this harder material to create your new edge as it will stay sharp longer. The process of creating a burr removes (all or some of) this layer of harder metal, which means creating burrs is not the optimal way of sharpening.
@@neutraloptions What a bullshit
Why not just use a jig? Exact angles, and more perfect edges?
I find jigs a bit of a pain to use. I tried the years ago and just preferred whetstones. Also,I don't think you get the consistency on the curves. IMO, whetstones seem to work better. Lastly, you don't get the choice of stones with jigs. I have three 3000 grits stones to choose from. Also, there are a growing number of people wanting to finish on natural stones these days
great video - hands on information 👍
freehand sharpening is also so much faster
@@closeaus88 It definitely is not. I do it both ways. A jig is faster and more precise. Freehand is necessary for certain blade shapes or very fine bevel angles on some Japanese blades.
I very rarely use fixed angle for anything because I find in almost all if not all instances a convexed edge works preferably. A convexed kitchen knife will shrug off the cutting medium better than a flat grind with primary bevel. A chopping blade chops better; a whittling knife whittles better and so forth. If you always use a fixed angle on a flat grind your blade will get thicker behind the edge, requiring regrind. Freehand sharpening can accomplish thinning of the secondary and primary bevels as well as the blending of the two in convexity. Fixed angle is a basic science. Freehand is a high art. Just playing devil's advocate here... Long live individual preference!