Good ! ...... now I'll box-up that drawer full of end mills and ..... 😄 . I share your frustrations with cutoff tools, but they sure make a good indexing slot for the ol' hacksaw ! And you reminded me I got to get my ol' dividing head back together -- so I can make more use-em-once tools 😃😃😃 !
That was a very successful outcome, make a tool to make a tool to make something is what it's all about! I love your fearless approach to doing anything in your shop too, and you make sharpening cutters look doable for us hobbyists, cheers, Dave
Hi Michel ☺, this project went smoothly, and the outcome was excellent. I think dust extraction would be a very good idea, you wouldn't want your hobby biting you back later. As hobbyists we quite often work in conditions that would get an industrial shop closed down , and yet we carry on whith it regardless as to what long, or short term health issues there may be as a result of our enthusiasm, play safe guys, look after your health. Thanks for another great video my friend, stay safe, and have a good wkend, best wishe's to you and your's, Stuart UK.
I discarded an end mill this morning. Wow, you're not just another pretty face! Thank you for this video. I always learn something new watching your problem solving and patience.
Thanks Rusti, it is all about the journey to get there, and this is a nice one. And as a plus the sharpened endmill will make journeys in the future even more fun.
How many people spend many hours preparing a meal, which is then eaten in minutes and there is nothing left. At least the hours spent at our engineering machines is rewarded with something we can enjoy, often forever. Excellent result, well done. 👏👏👍😀
Two projects for the price of one! Gear cutting *and* end mill sharpening! I think a bit of dust management will help keep abrasive HSS, diamond and carbide off your machine ways, as well as out of your lungs. Thanks for sharing 👍 🇬🇧
Keith wanted to say, I did enjoy your video and it turned out as a good outcome. Yes, Michael any mill grinding is not very healthy for breathing it in. Please put together a vacuum system for future grinding projects. Take care now.
Nice! I have lots of dull end mills, may of which were given to me from scrap bins. Just haven't gotten to try sharpening them. Given the cost of a new good end mill, it's worth taking the time!
Learning new skills is a life journey in itself. I never stop learning until, ARRRRRRg. then I'm done. Glad to see you still learning too. And it's cheaper than buying new, and more conveient as well.
I like restoring old machine tools. I always try to use each of my prior resorations on each new one, continuing the gene pool. Its a wonderful hobby. Not every one gets it, but I think Rusti does……
That came out nicely Michael. Your slowly building every gear you need for the lathe. Awesome! Also you can grind the inserts down with that diamond wheel. This way you get a sharper edge and hopefully a better finish.
Cracking video, thought you nailed the hobby bit exactly. Id like to see a-bit more about the mounting of the dividing head if possible. You get a lot of use out of it.
@@Rustinox that video made for a good Sunday morning together with pt 2. Cheers. Thats a great system and credit to you many people will copy that. Maybe try your bigger vice with the shaper cutting against the fixed jaw to stop movement.
It's that old "new shop/machine" problem, where a new project breeds a dozen more. Getting a machine, it turns out, is the 'easy' part. Getting it tooled and setup to use it is the complicated and/or expensive part. And sometimes, by the time you get the sub-projects done, you've forgotten what the primary project was.
I too seem to spend most of my workshop time making tools or modifying existing ones. Main reason is just the fun of doing it. The odd "project" does happen now and again. Used to go rock climbing when younger, no marathons though.
Thanks for the safety tips. Thanks for sharing. I make parts for lawnmowers too. When I make a bracket I could grind or cut it with torch, I chose to use a milling machine or a lathe.
Yes, presentation of a well made part is a glimpse into the maker’s heart and soul. How you get there tells the story of your life’s journey and how far you have traveled.
eyup Michel, very versatile machine that mill, lovely job, i have to manage with my homemade adaptor on the bench grinder for many years. As for some comments you mentioned, as long as we are happy doing what we do, that's all that matters, it's a hobby like you say, it's easy for some to critise from an "armchair".!!!! take care see you next time, in this wonderful hobby we do,. Kev
A lot in that one Michel. Mill as a tool and cutter grinder, yes I've thought of it. Your compound swivel table makes it easier than mine. Dividing head is on my shopping list. Your gear cutting was good, the Dekel evidently quite rigid. Good comments about hobby shop - learning and developing skills and teaching (like you) is never wasted time, even if we don't make money from it. Cheers
Gota love it....to make a tool to sharpen a tool. Requires making two more tools and making gear to finish the tool to mount to another tool...........
When I am down in the dumps, Sammie says "Go watch my Michel enjoying making things and having fun sharing his talents' So here I am, and should be in my trim shop knocking out upholstery...Will leave you this, Her Sand Castle may have been taken out to sea by high tide, but it will also remain as a poster of it to keep me going :-) Your Tx Friend, Bear & Sammie. "Diamond's are a girls best friend" but a '55 Chevy is what made my Sammie Smile (@@)!
In the old days, apprentices made their own tools so they understood the value of tools. It's that simple. You make your first square, you sweat to get it right. You make a centre finder... Piece of piss, since it doesn't need any real precision... If it's off, you inscribe a square, and either interpolate or scribe from corner to (opposing) corner and centre pop the intersection... A bad one will work... But will be a reminder... Get it right! You make centre punches, you turn, knurl, heat treat , you make a chisel, you learn about forging, heat treatment, and you sweat when you hold that chisel in tongs while your tutor hammers it through a 3/4" MS plate with a sledge hammer, testing your hardening and annealing... Screwdrivers, Toolmakers' clamps, tap wrenches, die stocks, and so much more... And you know what it takes to make the tools of your trade... And, if you have to buy something, you understand why it cost what it did... I once bought a lot of tools from a retired toolmaker. I realized he was asking too little, and suggested, turning away heading for home, that he held out for more money... He insisted I bought them, offered me a discount... I paid him his asking price, £70, back in the mid 90s, but every time I picked up something he'd made, and used it, I thought of him... A worthwhile thing to remember, that I learned from a journeyman in another engineering place (that is, not the one I worked at...) He had a rented lock up garage near mine. He had an old, even then, Norton Model 50, and a Panther 600. I had an old Royal Enfield. I remarked to him that I'd love to know how he kept all his tools so clean and shiny (no corrosion,despite the damp garage conditions) "I just keep using them" he said... It's obvious, if they're always in your oily hands, fixing something, they can't corrode, or at least the corrosion's so light that it wipes off with the next handling of them... We built "barn" tool boxes, tote trays, funnels for oil... And most us lost our stuff or had it stolen over the years...
Hej Michel, great effort! Two things I want to mention: First: We all saw that sharpening that end mill worked out fine. It may not work out with every cutter though. The more cutting depth a mill sees, the more chipping work is done by the spiral flutes, as opposed to the plane face. Thus, it'll either become necessary to grind away the face of the mill until all of the dull portion of the flute is turned to dust (say, you took many 5mm cuts with your mill, you'd need to shorten it by 5mm) - or get into resharpening the flutes of the cutter, too. Especially carbide cutters will tend to have small breakoffs at the very tip of the corner (making them look a little like 45° cutters), which can be taken care of much more efficiently by resharpening the flutes. A jig could be made - or a used grinder for 100 bucks or so will do the job fine, too. And secondly, my experience with gear cutters and circular saws in the mill was a funny one: At first, I thought the thin blade would just shatter if I took a hair too deep a cut. So I went carefully - and judging from the hammering noise the mill made, I must have been right at the edge of what was possible. So I took a little less cutting depth next time - only to find the mill being even noisier! One day, I got curious - and dialed in 50mm depth on a 135mm sawblade. The first few revolutions promised me it'd become increadibly loud - then all of a sudden, the noise died right down and the blade marched through the metal in almost complete silence. My only explanation is that by the deeper cut, more teeth were in contact with the workpiece, thus stabilizing the cutter for each entry of a new tooth.
Important with thin blades to take the cut in a single pass if you possibly can, because otherwise chips from subsequent passes can pack up in the slot and jam the cutter.
As always, you have an excellent video on building a tool yourself. May not be the fastest way, but even more satisfying because you did it all yourself. I think you were spot on with your explanation of why we do this a s a hobby...because we can! Cheers from Canada
Excellent work. In software development, the "I want to make a , but first I need to make several other things" is called Yak Shaving - after some cartoon somewhere. It is clearly a common thing in lots of different areas, and machining is definitely one of those. I haven't posted your parcel yet, will try to get round to it over the weekend - and I'll pop a couple of TNMG inserts in the box too - I have a few, and at least one kind that I find works quite well for general purpose lathe-work.
Yet another great entertaining humorous video, making a tool to make another tool, very interesting and informative. The end products of which will serve you for years to come. You have made some really well made tools, please keep your videos coming l look forward to seeing them every week regards Gary
set your tool post parallel to the chuck, the tip/tool has the correct relief already in it so setting the tool post off square upsets that, if you still get a poor finish try slowing rpm or increasing feed if that fails, have a beer and buy some emery tape ;-)
Nice one Michel. Better those diamonds in your hand then the wife's (I hope she doesn't read the comments or I'll be in trouble 😂). Good work on the end mill re-sharping. Cheers, Aaron.
Good afternoon. We protect ourselves from dust with surgical, disposable masks. And when we sharpen our incisors, we also wear them. A colleague wanted to ask you at what engine speeds do you process metal with these cutters?
As always, an entertaining and inspiring video. thanks! When the digitally controlled rotating table, standing, is running that sharpening work could be done here too. What RPM is the diamond cup should have? Though it was much more than a mill could produce. Bad dust... Would the Covid masks do? Still got 2 bags of them.
Good work as usual Michel. You worked around the problem and got a good result. What thread were you trying to cut? Is your lathe setup for metric or imperial thread cutting?
At my employment place just 5 day ago, we were discussing these kind of grinding methods and means to achieve sharpened tools . To dress grindwheels with diamond dressers. I wasnt fanatic about the idea straight away, though i thought the manufacturers took this scenario's into account, even with dust covers, masks and i wouldnt feel safe. Am i seeing too much in this😅😅🤔?unprotected we are inhaling microscopic knives😬?
Objective #1; Have fun. Check. Objective #2; Make Stuff. Check Objective #3; Learn Something. Check Objective #4 Share Knowledge, Check. Conclusion, Another awesome video. :) Gilles
Lol. Thanks Gilles.
Good ! ...... now I'll box-up that drawer full of end mills and ..... 😄 . I share your frustrations with cutoff tools, but they sure make a good indexing slot for the ol' hacksaw ! And you reminded me I got to get my ol' dividing head back together -- so I can make more use-em-once tools 😃😃😃 !
Go for it, Ken.
Your problem solving ability is amazing. I look forward to your videos every Friday
Thanks.
I look at all the tools I've made and think to myself, "what shall I make with them?"
The answer is always the same, "more tools of course!"
Spot on :)
That was a very successful outcome, make a tool to make a tool to make something is what it's all about! I love your fearless approach to doing anything in your shop too, and you make sharpening cutters look doable for us hobbyists, cheers, Dave
One good UA-camr once said: 75% of all work is making tools for the shop. I agree, but is really fun.
It id doable, Dave. Go for it.
This is a great idea, I'll throw together something for myself. Thanks.
Go for it. It works great.
Hi Michel ☺, this project went smoothly, and the outcome was excellent. I think dust extraction would be a very good idea, you wouldn't want your hobby biting you back later. As hobbyists we quite often work in conditions that would get an industrial shop closed down , and yet we carry on whith it regardless as to what long, or short term health issues there may be as a result of our enthusiasm, play safe guys, look after your health. Thanks for another great video my friend, stay safe, and have a good wkend, best wishe's to you and your's, Stuart UK.
Thanks Stuart. I play it as safe as I can.
I discarded an end mill this morning. Wow, you're not just another pretty face! Thank you for this video. I always learn something new watching your problem solving and patience.
Thanks Charles.
Thanks Rusti, it is all about the journey to get there, and this is a nice one. And as a plus the sharpened endmill will make journeys in the future even more fun.
You've got that right.
Diamonds, yes 😀.
Innovative and great work, happy new lathe gear ⚙ 😀.
Very nice job, thanks for sharing.
Thanks.
How many people spend many hours preparing a meal, which is then eaten in minutes and there is nothing left. At least the hours spent at our engineering machines is rewarded with something we can enjoy, often forever.
Excellent result, well done. 👏👏👍😀
You're right, Andrew. Thanks.
Two projects for the price of one!
Gear cutting *and* end mill sharpening!
I think a bit of dust management will help keep abrasive HSS, diamond and carbide off your machine ways, as well as out of your lungs.
Thanks for sharing 👍 🇬🇧
Working on it.
Awesome video as always. Make sure to cover your ways when doing this. That grit will destroy them.
Thanks. I will.
Nicely done, Rusti, you fearless fellow! 👍
Thanks Dudley.
Keith wanted to say, I did enjoy your video and it turned out as a good outcome. Yes, Michael any mill grinding is not very healthy for breathing it in. Please put together a vacuum system for future grinding projects. Take care now.
Thanks Keith. I will.
Very well done. Making tools to make tools to make other tools that we use to make tools (and so on and so on). YES! And I love every minute of it!
Absolutely :)
Nice! I have lots of dull end mills, may of which were given to me from scrap bins. Just haven't gotten to try sharpening them. Given the cost of a new good end mill, it's worth taking the time!
Go for it, Everett. The diamond wheel costs only 25€.
Hi there Rusti
Drill chuck, all the old stuff is the best🇬🇧👍.
I think so too.
Learning new skills is a life journey in itself. I never stop learning until, ARRRRRRg. then I'm done. Glad to see you still learning too. And it's cheaper than buying new, and more conveient as well.
You're right. And if ARRRRRRg... It means it's time for a coffee. And start again after :)
I like restoring old machine tools. I always try to use each of my prior resorations on each new one, continuing the gene pool. Its a wonderful hobby. Not every one gets it, but I think Rusti does……
I get it. The fun is, it just never ends :)
That came out nicely Michael. Your slowly building every gear you need for the lathe. Awesome! Also you can grind the inserts down with that diamond wheel. This way you get a sharper edge and hopefully a better finish.
Thanks Bruno. Need the tool, make the tool :)
What a wonderful program, Rustinox!! Thank you for making my day better :)
Thanks. My pleasure.
Good project. And…. you are correct, its a hobby and a personal challenge all in one.
Nice job on the gear and the mandrels.
Thanks.
Cracking video, thought you nailed the hobby bit exactly.
Id like to see a-bit more about the mounting of the dividing head if possible. You get a lot of use out of it.
Sure. Here you go, Mike;
ua-cam.com/video/C8-O1Bgegws/v-deo.html
@@Rustinox that video made for a good Sunday morning together with pt 2. Cheers. Thats a great system and credit to you many people will copy that.
Maybe try your bigger vice with the shaper cutting against the fixed jaw to stop movement.
It's that old "new shop/machine" problem, where a new project breeds a dozen more. Getting a machine, it turns out, is the 'easy' part. Getting it tooled and setup to use it is the complicated and/or expensive part. And sometimes, by the time you get the sub-projects done, you've forgotten what the primary project was.
You're right. Lucky for us, we're not in a hurry :)
I too seem to spend most of my workshop time making tools or modifying existing ones. Main reason is just the fun of doing it. The odd "project" does happen now and again. Used to go rock climbing when younger, no marathons though.
Just for fun :)
Hi Michel, never ever thought about using the mill, as you did. I spent three years making a tool and cutter grinder. Good onya
Well, At least It kept you off the streets for three years :)
Enjoyed! Great video production/discussion/demonstration/builds along with the hobby comments! FYI, just got a South Bend 7” shaper
That' great news, Chuck. 7" is the ideal hobby size machine.
Thanks for the safety tips. Thanks for sharing. I make parts for lawnmowers too. When I make a bracket I could grind or cut it with torch, I chose to use a milling machine or a lathe.
All for fun, Sam :)
Yes, presentation of a well made part is a glimpse into the maker’s heart and soul. How you get there tells the story of your life’s journey and how far you have traveled.
Great video rusty, keep'um coming..
Thanks. That's the idea.
eyup Michel, very versatile machine that mill, lovely job, i have to manage with my homemade adaptor on the bench grinder for many years.
As for some comments you mentioned, as long as we are happy doing what we do, that's all that matters, it's a hobby like you say, it's easy for some to critise from an "armchair".!!!!
take care see you next time, in this wonderful hobby we do,.
Kev
Thanks Kev. Just for fun :)
A lot in that one Michel. Mill as a tool and cutter grinder, yes I've thought of it. Your compound swivel table makes it easier than mine. Dividing head is on my shopping list. Your gear cutting was good, the Dekel evidently quite rigid. Good comments about hobby shop - learning and developing skills and teaching (like you) is never wasted time, even if we don't make money from it. Cheers
Thanks Paul. It's all just for fun :)
Gota love it....to make a tool to sharpen a tool. Requires making two more tools and making gear to finish the tool to mount to another tool...........
Sounds complicated, but that's indeed what it is :)
When I am down in the dumps, Sammie says "Go watch my Michel enjoying making things and having fun sharing his talents' So here I am, and should be in my trim shop knocking out upholstery...Will leave you this, Her Sand Castle may have been taken out to sea by high tide, but it will also remain as a poster of it to keep me going :-) Your Tx Friend, Bear & Sammie. "Diamond's are a girls best friend" but a '55 Chevy is what made my Sammie Smile (@@)!
All the best, Bear.
That Deckel mill sure is handy.
It is :)
In the old days, apprentices built all their tools because they needed them and didn't have money and needed the experience anyway.
Indeed. I's a win win...
In the old days, apprentices made their own tools so they understood the value of tools. It's that simple. You make your first square, you sweat to get it right. You make a centre finder... Piece of piss, since it doesn't need any real precision... If it's off, you inscribe a square, and either interpolate or scribe from corner to (opposing) corner and centre pop the intersection... A bad one will work... But will be a reminder... Get it right!
You make centre punches, you turn, knurl, heat treat , you make a chisel, you learn about forging, heat treatment, and you sweat when you hold that chisel in tongs while your tutor hammers it through a 3/4" MS plate with a sledge hammer, testing your hardening and annealing... Screwdrivers, Toolmakers' clamps, tap wrenches, die stocks, and so much more... And you know what it takes to make the tools of your trade... And, if you have to buy something, you understand why it cost what it did...
I once bought a lot of tools from a retired toolmaker. I realized he was asking too little, and suggested, turning away heading for home, that he held out for more money... He insisted I bought them, offered me a discount... I paid him his asking price, £70, back in the mid 90s, but every time I picked up something he'd made, and used it, I thought of him...
A worthwhile thing to remember, that I learned from a journeyman in another engineering place (that is, not the one I worked at...)
He had a rented lock up garage near mine. He had an old, even then, Norton Model 50, and a Panther 600. I had an old Royal Enfield.
I remarked to him that I'd love to know how he kept all his tools so clean and shiny (no corrosion,despite the damp garage conditions) "I just keep using them" he said... It's obvious, if they're always in your oily hands, fixing something, they can't corrode, or at least the corrosion's so light that it wipes off with the next handling of them...
We built "barn" tool boxes, tote trays, funnels for oil... And most us lost our stuff or had it stolen over the years...
Well done Rusty, I wish I could regrind the myriad of chipped but otherwise serviceable end mills I have
You will find a way. I'm sure.
@@Rustinox I haven't given up yet 👍
Hi Rusti, excellent journey to the end result. Your philosophy moment was spot on by the way 😊. Cheers, Jon
Thanks Jon.
Love your philosophical stories.
Lol. Thanks.
As usual you make it look easy and that means we can all have a go 🤣
Of course. Go for it.
I love it! I just made a tool to make a tool work too! Great description of that.....
All for fun :)
Great video on all fronts good work, funny and to top it off a surprise graphic 👍
Thanks Paul.
Hej Michel, great effort!
Two things I want to mention:
First: We all saw that sharpening that end mill worked out fine. It may not work out with every cutter though.
The more cutting depth a mill sees, the more chipping work is done by the spiral flutes, as opposed to the plane face.
Thus, it'll either become necessary to grind away the face of the mill until all of the dull portion of the flute is turned to dust (say, you took many 5mm cuts with your mill, you'd need to shorten it by 5mm) - or get into resharpening the flutes of the cutter, too.
Especially carbide cutters will tend to have small breakoffs at the very tip of the corner (making them look a little like 45° cutters), which can be taken care of much more efficiently by resharpening the flutes.
A jig could be made - or a used grinder for 100 bucks or so will do the job fine, too.
And secondly, my experience with gear cutters and circular saws in the mill was a funny one:
At first, I thought the thin blade would just shatter if I took a hair too deep a cut.
So I went carefully - and judging from the hammering noise the mill made, I must have been right at the edge of what was possible.
So I took a little less cutting depth next time - only to find the mill being even noisier!
One day, I got curious - and dialed in 50mm depth on a 135mm sawblade.
The first few revolutions promised me it'd become increadibly loud - then all of a sudden, the noise died right down and the blade marched through the metal in almost complete silence.
My only explanation is that by the deeper cut, more teeth were in contact with the workpiece, thus stabilizing the cutter for each entry of a new tooth.
This all makes perfect sense, Adrian. Thanks.
Important with thin blades to take the cut in a single pass if you possibly can, because otherwise chips from subsequent passes can pack up in the slot and jam the cutter.
As always, you have an excellent video on building a tool yourself. May not be the fastest way, but even more satisfying because you did it all yourself. I think you were spot on with your explanation of why we do this a s a hobby...because we can!
Cheers from Canada
Thanks.
Good, get me out of here Rustinox. Great to see it working. Looking forward to the tweaks. Tony
Thanks Tony.
You made it. Well done Mickel no stopping you. I think I have the exact same chuck. What a piece of junk.
It' a "Sanou" chuck. Not good at all.
Excellent work. In software development, the "I want to make a , but first I need to make several other things" is called Yak Shaving - after some cartoon somewhere. It is clearly a common thing in lots of different areas, and machining is definitely one of those.
I haven't posted your parcel yet, will try to get round to it over the weekend - and I'll pop a couple of TNMG inserts in the box too - I have a few, and at least one kind that I find works quite well for general purpose lathe-work.
I often find I have several bears to skin before I can get started on the Yak shaving operation🤣
Yak Shaving? I didn't know that.
Thanks in advance, Mats.
Nice work Michel, as my hobby buddy said, nothing like a freshly ground milling bit to make your day! enjoyed, cheers!
He's right :)
Yet another great entertaining humorous video, making a tool to make another tool, very interesting and informative. The end products of which will serve you for years to come. You have made some really well made tools, please keep your videos coming l look forward to seeing them every week regards Gary
Thanks Gary.
Thank you for your knowledge. Thailand
My pleasure.
set your tool post parallel to the chuck, the tip/tool has the correct relief already in it so setting the tool post off square upsets that, if you still get a poor finish try slowing rpm or increasing feed if that fails, have a beer and buy some emery tape ;-)
Or use an HSS cutting tool :)
Nice one Michel. Better those diamonds in your hand then the wife's (I hope she doesn't read the comments or I'll be in trouble 😂). Good work on the end mill re-sharping. Cheers, Aaron.
I my hands they will see more use :)
Thanks for sharing this
I wondering what is the best grinder tools do I need
Thanks Mr. Randy. Use what you have and be happy with it :)
yet another excellent vid, Thank you :)
Thanks.
Good afternoon. We protect ourselves from dust with surgical, disposable masks. And when we sharpen our incisors, we also wear them. A colleague wanted to ask you at what engine speeds do you process metal with these cutters?
I run it at 1900 RPM. It's the maximum this machine can do.
good video rustinox
Thanks.
Thanks.....Safe is good
I think so too.
Hobby= Fun & Challenging
Cheers
Spot on.
Michel, 😱breathing dust not a great thing, nor is Smoking 🚬 😤. Stay safe and well 👍🏴
Thanks Al. I think I already knew that :)
Nice job Michel! Nothing is ever easy, is it?
It's all part of it :)
As always, an entertaining and inspiring video. thanks!
When the digitally controlled rotating table, standing, is running that sharpening work could be done here too.
What RPM is the diamond cup should have? Though it was much more than a mill could produce.
Bad dust... Would the Covid masks do? Still got 2 bags of them.
There is no maximum RPM marking on the disc. So, Who knows?
Good work as usual Michel. You worked around the problem and got a good result. What thread were you trying to cut? Is your lathe setup for metric or imperial thread cutting?
Thanks.
This was a 1,25mm pitch.
I find that I keep making random projects more complicated just to make more tools.
Lol. It's a hobby :)
At my employment place just 5 day ago, we were discussing these kind of grinding methods and means to achieve sharpened tools . To dress grindwheels with diamond dressers. I wasnt fanatic about the idea straight away, though i thought the manufacturers took this scenario's into account, even with dust covers, masks and i wouldnt feel safe. Am i seeing too much in this😅😅🤔?unprotected we are inhaling microscopic knives😬?
I use dust extractor and mask for grinding. But, indeed, it's impossible to eliminate 100% of the dust.
Should you be using Diamond on HSS ?
I don't think it's a problem. The main goal is to sharpen carbide. This was just a test.
I have had luck using inserts for aluminium
That works too :)
The dust is bad for you and your machine.
Indeed, it is.
✅ *Promosm*