The biggest sharpening mistake woodworkers make (And why...)
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This made an instant difference in my chisels! When I got my stitches today the Dr. commented on how clean a cut I had. I can’t wait to use them in a day or two again!
LOL I hope you're okay
Hah, great joke ( I hope )
Very funny!!!!
lol I hope ur ok though.
What a manly way to test them. 🤣
Stumpy Nubs may not be the flashiest TH-cam woodworker, but he's by far the most valuable. The amount of education and insight I gain from his videos surpasses any other YT channel, even my favorite ones.
I do like this chap: plain, uncluttered advice of real value.
Thanks, Stumpy. It's always nice to learn the basics in such a way that you get the reasons why, so you can 'think with the tools'. Thanks for going the extra mile to explaining it exactly in this fashion!
I'm just getting started and the amount and quality of content you produced is astounding. I'm certain that you have a very meaningful impact on woodworking worldwide. Thank you so much.
Wow. I am so impressed at your teaching - clear, conversational, and motivated (and motivating). Subscribed immediately. Thank you.
I almost didn't watch this because... I know this subject - It's pretty basic. But it's so well done that it IS worth watching - it pulls everything together and makes it very clear. So... Great job. You are a fine communicator Stumpy Nubs.
Excellent video, thank you.
This answered a lot of questions for me and solved some issues I was having.
10 times better explenation than anything else i found so far. Thank you!
I've seen a lot of videos on sharpening chisels, this was the most informative. Thank you.
3:52 "...and you know how hard it is to get rid of a belly" - great line :D
Excellent explanations! I always knew the backs needed to be flat, but have some unused tools, like the least used sizes of chisels, because I never had the time to flatten the backs. Your explanation of the ruler trick was great! I finally understand it and may try it on some planes that I've been meaning to refurbish.
Relatively new subscriber and love the common sense you put in the videos. Thanks for sharing. Great channel.
It’s very good of you to credit David Charlesworth with this, given that he invented it. I’ve been on all his courses and using his techniques means that sharpening becomes a pleasurable and satisfying experience that is part of the task rather than a chore which has to be got through. I remember his tool tuning course in 2005 which was a revelation; lifts you from clueless to sharpening expert in one week. Once you get your rhythm, the blade is sharpened whilst the tea is brewing. I like the fact that you give logical reasons why - with great little drawings - one should sharpen both sides of all blades.
This was the most informative and comprehensive tutorial I've come across. You gave me a LOT of good information and I REALLY appreciate it!
So thank you!!
Such a great explanation!
Thanks David!
I've been shaving with a beard knife and now I have a bread knife. You are my favorite artist!
Too funny James
me too
James Bushey 8
Really excellent explanation of something I had never thought of. I use a diamond "stone" nowadays, because fed up with ordinary stones getting rounded, and only flatten the last two inces of a chisel - but I had never heard of the convex and concave problem. Brilliant, thanks.
Great to see you are doing the 'figure of eight ' sharpening technique. many you tubers seem to use the simple
back and forward technique inadvertently literally grinding grooves into their blades
Hi stumpy I love your videos iv just finished my level 3 bench joinery at collige I think your videos are helpful and full of information thank you for teaching me your technics 👍🏻keep it up
"If you never pay attention to the back of your tool, you're only doing half the job" words to live by brother...
Thank you for this video. Now I know what to look for when I am sharpening my tools. Very informative and easy to understand:)
Thanks James. Makes a whole bunch of sense. Great diagrams for explaining what your saying
This is the 1st video of yours I've watched and I find your presentation excellent, so much so I've subbed your channel, despite my not being a woodworker. I appreciate things well done (just not my steaks) : )
me too!
Excellent presentation style ! The drawings really help your explanations, and how what you are talking about. Your set is something to look at also.
Well, my day's work has just begun. I'm off to the workshop to flatten 10 chisels and three plane blades that can then be sharpened properly. This has been an eye-opener for me. Excellent, detailed explanation of the finer points of sharpening. Thanks Stumpy.
Been looking for a good site on how to sharpen my knives and chisel and plans. Great job on explaining how to do it right.
Try Paul Sellers.
Gosh... I wish I was your apprentice..
Another great, perfectly executed video, thank you for the exceptional tutorial.
Thank you for pointing me in the right direction. Great explanation.
Excellent and informative video. Just what i need to cure the frustrations i have been experiencing with my chisels. Many thanks.
Im a professional sharpener and this guy is the real deal! Fantastic production, pace, and illustrations. A+++
What a great channel. Thanks so much for these PRICELESS videos!
Times passes but metal and wood persist. I go back to your videos as l learn, and you definitely make a difference.Thank you
A tool will never be sharper than its back. If it’s microscopically pitted or contoured , it’s never going to work well. So many guys I’ve worked with with never understood this simple concept. My chisels used to get a freshen up on the back before the bevel : and this usually just required a quick wipe on a fine hone and finishing on a leather strop . Works with everything from 1/8” paring chisels to 4” Shipwrights slicks.
Great video. Subscribed.
I never understood this until watching this, so simple. It's always the case, simple when you know how. But, it's a shame there are so many fellas out their giving their own respective but entirely false opinions 😡
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Thanks James...this is a very useful instructive video-it is appreciated.
Best yet video. I appreciate that you mentioned David Charlesworth. I've read his work and hold him in high regard concerning planes and sharpening. Cannot believe he is not better known.
Great tips Stumpy. One you missed was one I got from Paul Sellers! If you have a cheap chisel with a belly on the back, (from end to end rather than across the width) it is possible to put the tool onto a couple of pieces of wood then use a hammer or something to straighten out the blade of the chisel prior to flattening / polishing the back.
Just solid unquestionable woodworking truths. Thanks for sharing. And yes, the pleasure it's all mine.
Nice video. And I'll have you know, you did a brilliant job of tricking me into learning something.
Keep them tips, tricks and techniques videos coming, Stumpy - learn from pretty much each one - thanks!
Stumpy.... another good video - seems I learn most of my fundamentals from you. Others show how to do something, but I like the way you take the time to explain why you do something! Thanks! I am look forward to seeing your subscriptions grow to 1,000,000 plus in 2019.
Awesome video James! Thanks for the great explanation.
Great video. This person is one excellent presenter, best I've seen in ages. Well done, and thank you for the instruction.
I totally agree !!!
Awesome. Learned this from a German woodworker who told me his first year in the shop as an apprentice was to learn how to sharpen chisels a saws and scrapers etc.
Why water stones need to be true prior to use.
Very very nice.
i'm a bookbinder, and there is a knife I use for skiving leather that has to be SUPER sharp to shave the edge of leather down to paper-thinness for wrapping round the edge of cover boards. This sharpening technique is one of the first things i was taught as a bookbinder--first you get the bevel sharp, smooth, at the right angle, and mirror-polished. THEN you sharpen and polish the back of the skiving knife.
Most skiving knives come from the manufacturer needing a LOT of work--mst of mine have taken several hours of hand-honing on several progressive grits of diamond stones and strops to get them "right". And then every few weeks, I strop and polish them to maintain the edge.
it only makes sense that this method would also be appropriate with wood tools too. Great video!
I want to than you for this video. No one has explained the hollow on the back as in detail like you. This is amazing, thank you again.
Thanks, Stumpy! I learned a few things, good stuff.
Your delivery on your videos is terrific. One man show? I am very impressed. You've two big skills, woodworking and videography. 3 if we include the artisic drawings.
This is excellent information. Thank you kindly for posting !!
Great to see the dedication to hand tools. I am a Toolmaker. Modern /plastics molds. Efficient machine grinding works better with the subject metal in its hardened state.
Great video James. This is all very sound sharpening advice that clearly comes from someone who has a lot of experience.
And the drawings really help to illustrate the concepts you are talking about.
Great info as usual James, It's a one off on buying chisels and plane blades. I lap approx 30mm of cutting edge, and then it's good to go forever (most of the time). It does not take that much effort and not having to think about when you used the ruler trick last.
Fantastic video and explanations James, thanks for the lesson.
Thank you for posting Mr Nubs.
Simple to understand, thanks mate, gives me something to work with.
Good video! Many wood workers are taught to never sharpen the back of the chisel. That is good advice for novices, and you can ruin a chisel by sharpening it improperly. But as with all tools, if you know what you are doing then you can fix almost any mistake.
Thanks James, this was just as good this time as it was the first time I watched it.
Those drawings really help. I understood the concept but the drawings really helped me picture it.
I am new to woodworking. My parents flipped houses 40 years ago before it was a thing so I'm not new to tools.
However your advice for the woodworker, which is more of an art is very clear and easy to understand. And the additional information and comparisons descriptive illustrations are very helpful to me. A really good balance, not so involved as Paul Sellers advice (I'll have to retire to have that time, but can dream of it) and what is really practical for those of us who want the do it right but with the realistic time frame we have available.
That was easy understandable and very useful. Thanks for sharing!
Always great, clear and concise information. Thanks.
Thanks a million for the video... You have been extremely helpful...
Brilliant, mate. On the rare occasion I want a back bevel, I use 3-4 turns of electrical tape (start and end on the bottom).
More usually it's a bit of 2000 Wet/Dry taped to a piece of flat glass - (stick-on rubber feet on the bottom). (tape works there too and saves my rulers :)
Man, that's an impressive array of vintage hand tools behind you! The plane collection in particular, is mind-blowing. Subscribing.
Great lesson-You are the BEST!
Fantastically clear!!! Easy to understand.
Great vid, as always from SN- thank you. I thought the drawings were extremely effective in visualizing what you were talking about.
This is really useful information! I didn't know most of this!
I'm very new to woodworking, and I'm becoming more and more demotivated spending so much time just trying to flatten the back of my very cheap chisel, even if I know I'll just do it once in my lifetime for every chisel. Knowing that it's the chisel's fault and not mine, really makes me wanna go back to my woodworking immediately. Thank you for this video, it was extremely informative :>
If there is a belly on a plane iron you can give it a tap with a plastic mallet and it will straighten it out a fair bit. I got that tip from one of Paul Seller's videos and tested it myself and it really does work.
You have so much good knowledge ! Thank you again!
Excellent presentation and content. ONE viewing and I am now a subscriber. Absolutely love the back drop of tools!
same here lol
this video is FANTASTIC. all information no over explaining.
Super clear and concise! Thank you!
Another great video by the master, thanks!
I learnt something new today. Thank you.
thank you, another great talk and demo
Nice explanation, I tend to hit the back after I hit the bevel, 10 strokes generally keeps it very sharp.
Niiicceee
Hi James, I've been using 'Electrical Tape' instead of the ruler for some years now. It is thinner, it doesn't affect the stones, it gives a perfectly uniform angle as it is taped to the blade itself and going from one grit to another keep the same angle of attack. You don't have to faff around with keeping the ruler from moving around either.
AND - I use it on most of my chisels too. If you do the calculations the ruler creates nearly a 1 degree back bevel at 2 inches from the edge (0.9 degrees to be precise). The electrical tape is .14mm thick against at least 0.8mm for the ruler and the resulting angle is a mere 0.14 degrees, still useful to get a quicker mirror face on the back and no real impediment to even paring work. Try it, you'll like it :)
I like the word faff!
Does the electrical tape hold up during the rubbing or does it start to roll off or become dislodged?
@@TheSeancassady No, it glides over my diamond stones without showing signs of wear, and also the Japanese 6000 grit water stone. Obviously, it is a one-time use process. I'm careful to measure and tape it exactly 50mm from the tip so that next time I get the same micro angle. I wouldn't use things like painters tape though. That would break up. Electrical tape is really consistent in thickness too.
Rob Robertson 8
Thank you for the good tip, but wouldn't engineering shims that are within +/- 0.002mm be better as they much more accurate?
Excellent video. I learnt new, useful stuff!
I am an amateur lapidary. I wonder if a "flat lap" would be of any use to sharpen carpentry tools? They are simply a spinning disk which may be coated or "sintered" diamond of any grit, or an un-coated disk may be faced with wet-or-dry sandpaper. The laps are absolutely flat (especially so since they will be spinning.) Since the motor operates on DC current, their speed may be adjusted. They have a set-up which allows water to be dripped as they spin. And they can flatten an abrasive block too - the diamond is ever-so-much harder than it is (actually flattening sharpening stones also "dresses" the lap, since more of the diamond is exposed.)
You have such a nice speaking voice! I like the way you explain yourself too.
As a musical instrument maker, I can only agree. Well explained.
Cheers from Vienna, Scott
I think this is one of your top 10 videos, James.
Your video is excellent, sir. The science is so thoroughly explained and drawn easy to understand. I want to go back to high school physics and have you draw every diagram for me.
Great video just subscribed.
Really helpful. Thank you!
This is an excellent informative video, thanks.
Never knew how important it was till i took the time to really flatten the back and sharpen the edge! made a whole world of a difference. Minimum give it 30minutes of sharpenning and it is well worth the time .
Superbly explained..how does one sharpen curved chisels as in the ones used in for carving? I'm an absolute beginner and how you explained everything in this video came across brilliantly..lol, I can be painfully dim at times!
To be fair my friend, I really need to have this question answered too.
I was left a massive amount of tools in my grandads will. Among them an enormous amount of wood chisels, over 150, marples I believe them to be and 22 Record and Stanley wood planes. Vices, clamps I ha e never even come across before! You name it, he had it! Anyway, their are a lot of gouging chisels, they look to be for the wood lathe/bandsaw combo I also inherited (weird looking thing I know, it must be pretty decent its a myford). Any who, although the chisels are exceptionally clean and keen at the moment, I would like to be able to do such tools justice and at least maintain them correctly.
So, the round gouging chisels have got me at a loss.....how do you keep the inner curved part flat? I am sorry if I didn't explain this well, I am new to woodworking. I'm fine with metal and my hobart....but this is like black magic! Please help.
Btw, are you any relation lol
Curved chisels are normally sharpened in a jig against a powered wheel . Consistent sharpening by hand with a complex bevel is extremely difficult
@@shonaoneill5151 yeah like mentioned already consistency is key in complex edges, they make simple jigs for grinders to keep the tool referenced against the cutting surface of the grinder, or you could build one yourself.
@@shonaoneill5151, I'm with Peter Herrington on this one, but I'll take a step further.
You'll want to run a search through Ebay and/or Amazon fairly soon...
Search for "jigs sharpening gouges" and any related terms that come up as you scroll through the images... Study each item offered carefully (not just the price to cringe at)...
You see... Sharpening jigs in Carpenter's shops are OFTEN handmade, and some can get pretty "wonky looking"... BUT the principles of sharpening and holding a consistent edge don't change... SO it stands to reason if your inherited collection is so clean and keen, then your grand-dad probably had a few such jigs around. They might not look like what they are to the "uninitiated eye"... making it EASY for you to overlook them.
I've been in Carpentry for most of my adult life (off and on... and among other things) and I can still walk right past something a few times before stopping to realize what I'm looking at... ESPECIALLY jigs!
...funny story...
I actually had a "twist drill jig" for sharpening bits on a bench grinder... The thing had sat in a box for years. Meanwhile, I was buying new "electric drill-bit sharpeners" every time I wore one out (I end up occasionally stuck in metal and stone work, even in carpentry...lolz)
...AND then (about six months ago) an elder neighbor was chatting while I was maintaining the shop, and part of that was "the drill bit patrol"... When he grimaced at the racket of the little bit-sharpener I was "beating to death"... Then he pointed out the jig and asked me what the hell was wrong with that one...
It was kind of embarrassing when he sat it up, next to my own bench grinder... stuck a bit in the thing and "zing!" sharp... just like that!
Finally... you probably already know... BUT it's worth repeating. If you do go after sharpening anything with a power tool, I highly HIGHLY recommend a SPEED CONTROL involved on the power tool.
High speeds and grinding make heat... heat kills temper in steel... Water and oil can only do so much... SO a slower grinder makes a happier blade... simple. ;o)
I thought I knew what you were talking about in the first few minutes, then was surprised when you said to polish the whole backside! Then I was surprised again when you went right back into what I've always done, polishing a slight bevel on the back! Was a bit relieved to be honest, lol
ive been doing carpentry and joinery for nearly 40 and i have to say i thought i knew it all but this channel is fantastic
thanks for the video. do you have an order preference when sharpening? I have typically done bevel - back - bevel - back
Thanks. This was really interesting. I have never used the ruler trick but now I must test it. I’ve always been using old fashioned stones like my dad who was a carpenter. The diamonds I have had have been too thin and haven’t worked well. I think that your diamond stone must be really expensive but I have so many different chisels and other cuting tools so perhaps I should invest one.
Really informative . Excellent presentation.
great vid - lovely style! Thanks.
Hello sir i like your back yard tools so many items i like this store
Brilliant. Uncluttered and valuable advice to all chisel users.
thanks for sharing this info!!! and this STAFF behind you :)
A great video which taught me so much thanks.
Great video the how and why ,very clear .great job
You have the best damn woodworking channel on TH-cam.