The wooden model keeps it simple ( just right for me) , brilliant teaching.

Hi Joe, well "Buy nice, or buy twice"! That's a lesson I learned a very long time ago! It's a tad more, but you do get what you pay for! It's a good lesson!!

One thing to note about ER collets, if you purchase "Coolant" sealing collets either all steel or rubber sealed, never try to close them on any diameter except nominal. They will get crushed and take a permanent set if the tool diameter is too small. I see it all too many times with the "new guys" constantly destroying good collets simply because they don't know the difference between a regular ER collet and an ER coolant collet.

Really want to thank you for the content you put out. After getting cancer and now I'm being told I have less than a year, it's great for me to come out on my "good" days and tinker in my barn and lathe. I still have most of my my diesel mechanic tools (25 yrs) and I've either traded on some stuff or or just have not found it yet. Cheers Joe, I really appreciate your knowledge.

I always think I have a good general knowledge about a topic, until you talk about it and I realize how much I didn't know, lol. keep up the outstanding work, sir!

Joe - I always come away amazed at the depth of your knowledge. I appreciate your ability to neither talk down to me or up to me. Thanks for the lesson. Rex (the retired airline pilot)

Thank you for the shout out. I absolutely did meet you at the Bash but the boring bars came from the other Steve, Steve Barton of Solid Rock Machine. I was good to meet you.

Excellent presentation. The wood analog is just spectacular. Thanks.

Thank you for the time and plywood put into making this; I know both are valuable.

I spent a lot of money on either the wrong and or crappy and collets till I saw this video. Now I have only 6 and they are brilliant. Thanks Joe

LOVE THE ANIMATION it helps to make sense of what goes on in a collet

Your demonstration is "Top Drawer"...great teacher.

Great job on explaining the differences between collets😀😁👍

You are literally the best teacher I have ever seen in my life.

That indexable collet closing mechanism is awesome

Super clear explanation of what's available and how to choose them. The visual examples of what happens when things are tightened are awesome!

When Joe said animation, I was expecting pixels. Very impressed that he took the time to make props to demonstrate.

Every time I think I know what I'm doing, I see another Joe Pie video and ... find out I didn't know it all - heck, didn't even know what I didn't know. Thanks as always!

You are the best! I use 5C collets (for my Lathe) and MT2 collets (for my Clausing 8520 Milling Machine) and needed a good description and comparative analysis of ER collets. As usual, you delivered. Thank you and keep doing what you are doing.

great school with gripping demo with wooden planks, without this i would have never understood the gripping effects. you are good master on Grips! Thank you, that was wonderful teaching.

Nice job on the animation using plywood. Thanks for taking the time to do that. Very clear and informative.

As far as teachers go. Joe you are my HERO. I always learn something new from you.

That demo with the wood was incredible. Thanks for the mind warp. As always.

This confirms my decision to go ER series, I have ER32 and ER40 for my mill and lathe. They work extremely well and are cheap as chips as a complete set from China. They may not be as fancy as the expensive sets BUT they have only 0.001 runout which in 95% of jobs is adequate. Nicely explained BTW Joe !!

You can tell a craftsman because he can make his own tools. Amazing crown collet!👍👍👍

Very good explanations and your presentation were very clear about the different kind of collets.

Perfect simple explanation and demo of collets Joe! Really liked the oversize wood demonstration. Visual aids like that are absolutely superb for proper understanding of a subject. I have learnt so much from you! Thank you 🙏

Outstanding teaching aid to put everything into perspective. A picture is worth a 1000 words.

Joe, Very nice overview on the particulars of different collets. Thanks!

I've used ER32 collets on my CNC machines for close to 30 years. As long as the tool is held deep enough they work great. I've been retired 7 years and have an R8 set on the mill and they have always worked well. The 5C collet chuck on the lathe also has been great as long as the work fits well. The 5C chuck has the adjustable back plate and I've adjusted it to very close to perfect. The collets are good also. I recently got an R8 to ER40 chuck for the mill, saves me using a step stool and the collets run very nicely. I got an ER40 chuck for the lathe and I can't get it to run true. It is of the "set tru" type and I can dial it in to near perfect at one depth on the taper but as I move away from that spot it deviates, a lot. Well known importer that has had me go through all sorts of trails, to no avail. They will replace it. I can understand them suspecting I'm an idiot. I owned a manufacturing business for 35 years and know a lot about incompetence. I've followed your videos for a long time.

Somehow I missed this one last year. Great information as usual 👍 thanks for what you do!

Great demonstration Joe. This helped me decide on which collet system I will be choosing. Thanks for sharing.

Excellent video and especially the animation!!! Once again, you mention things that I probably wouldn’t have thought of in a million years! Lol. Thanks Joe...you’re the man. 👍

Thank you for putting time, effort and skill in making these excellent videos!

Just awesome explanation of why. Thanks Joe, now I know what to look for.

Thanks Joe for another excellent presentation, I picked up a few valuable bits here, cheers from Australia

One thing I'd add for ER collets is that the like to be balanced ie grip all the way down the length. So don't go gripping short stock at the very tip, otherwise the collet will generate the angular contact and tend to grip at the back of the part. Simple solution is to insert similar size stock at the rear of the ER collet as well

I watched this vid after I bought a full set of 5C collets. Ouch! However , I do appreciate the excellent content and clear presentation that you provide. Thanks Joe.

This is all so helpful for the guy with a small shop! Few can afford 5 axis machining centers - I think even those guys can benefit. Great stuff! :)

Great animation showing how they work. Enjoyed watching the video.

G’day Joe, love the wooden mock-up from the wood shop makes it easy to follow and visualise. Cheers Peter

Hey Joe, love your vids. You left out a very important part about collets. ER collets are meant for tool holding, and require the "work" be deep inside the collet. If the work is not deep into the collet, it will have to be over-tightened which can easily damage both the collet and the holder, and will not be secure. 5C collets are meant for work holding, and can be used right out to the very end. There is a very good reason that work holding options are not available for ER collets - they are not intended for work holding, and using them for work holding should be approached with great caution.

Excellent tutorial! I had no idea about the issue with 5C collet's that you demonstrated so well with that mock up. Thank you

Glad I watched this one. I am just starting out as a hobbyist and I love my ER collets - I have 4 sets! Some have said they are inaccurate but I have found them fine and they have never slipped. I am going to continue with them and ignore the doubters.

Very good explanation and demonstration of 5c, R8 and ER collets. Thanks for taking the time out of your busy day to make these videos.

Fantastic video once again! Thanks Joe. I really enjoy your approach to machine shop issues. You have a different, highly technical approach that I enjoy. This video explained some of the issues that I have come across. Keep up the great work.

Awesome video! Great visual props.

Man, your instruction is phenomenal!! Thank you!

Once again ... a great video Joe. Thank you for the lesson!

Right about the different config and gripping precision, Here TG-100 and ER40 are mainly used, sometimes 5C... I like your demonstration with the mock-up... Well done... ;)

Invaluable knowledge expertly presented that I'll remember for years. The wooden models were important lecture aids for illustrating the key points. Thank you for distilling the key points into a succinct and excellent presentation.

I loved the mock-up Joe! Great discussion on collets that everyone uses. Thanks for sharing.

Again a great presentation. One of the great advantages of sets of ER collets is it will hold any tool size in range. Most collets come in 1mm increments and will hold parts 1mm under nominal. The smallest collets may only have a .5 mm gripping range. For inch sized collets the increments are 1/32 and will hold 1/32 under nominal.

Thank you Joe for a very informative video. It will really help me in setting up my small home shop, thanks again!

Excellent explanation, big thumbs up on the animation👍. If I may add, draw bar collets on a lathe are a lot faster to operate, than ring nut type, though there is also front ring fast operating type. Great presentation, and spider free.

I can appreciate that visualization. That was well planned out. Very good 👍🏼

Always interesting videos, thank you.

Joe, love all your videos. You are the best teacher!

Thanks again for your time that was well done even Mr Pete would be impressed.

Great video, especially the explanation with the wooden mock-up. Thanks

Another fantastic tutorial. Thanks Joe!

Thanks Mr Pieczynski. This is a very helpful video to anyone who is tired of slipping drill bits. Ah yes, i'm starting with an ER20 collet holder and some mid range collets, wish me luck.

Excellent info {as usual] gotta love your style as well Joe. thanks

Absolutely fenomenal demo Joe! I just got a lathe and was wondering what kind of collet system to choose. It still needs a lot of work but when I get it running I give that miniature lathe kit a try!! Thanks again for the great video, take care!!

Always enjoy learning from you Sir!!!

Great video and great explanation using props Big Thanks

Great info and great presentation, as always!

Great videos, given me a better understanding of several aspects of the subject . I'm not an engineer, but almost 50 years ago I took a couple of summer jobs at small engineering works at a time when there was loads of such work. I had done metalwork at school and so second week at work I was a capstan lathe operator.

Welcome back Gregory. Thanks for watching every second of this video. Loyal fan since 2021. LOL

Just got done reading about this, thanks for the visual of what they were saying in the book. Now I understand it better, yup totally new to this... thanks.

Thank you - perhaps again - for this; I finally got around to buying a mill and a lathe for my little tabletop machine shop and this knowledge was useful for that project.

As someone that is a new to this arena and is only a hobbyist, that was an incredibly helpful way of explaining the differences! Thank you for that effort in breaking down the difference 😆

Once again Joe, thank you! That "animation" was spectacular in its simplicity with the result being a very clear explanation of the weakness of the 5c and R8 collet vs the ER collets. I've only used the 5c collets and the 3c ones that came with my Southbend 9 but now I understand their limitations. Thank you sir!

Joe, A concise presentation. Thanks. Tony

This has been excellent information! Thanks so much for your time.

Also, something important to note: ER collets have (slightly) less gripping force if they're gripping towards the bottom of their range. This is because the internal bore diameter doesn't change, you just collapse the space in the slits, so, you no longer have full contact the whole way around a bore. You still have lines of contact the full length of the collet. Another important thing to note with ER collets, you must use a large portion of the length of the collet (most of the places I've seen list 2/3 the length of the collet) otherwise they will not collapse evenly. You cannot hold very short parts in ER series collets unless you also put something at the back of the collet to make it collapse evenly. This ins not as much of a limitation with 5C type collets.

Great information, presentation excellent. Thanks.

Great demonstration of how the collets clamp. Thanks!

Very interesting. Thanks for sharing !

Thanks so much for sharing some of what you know- always inspires me to get out and make chips!

Thanks Joe, the light bulb came ON for me.............. great presentation!

Really good info and demonstration (animation) with the wood. Feeling better about my decision to obtain my ER32 inch & metric collet sets. Thanks Joe ~ Richard

Great vid Joe. Thanks for sharing

Very nice presentation and explanation. Thanks!

Joe I am very glad I found your channel. Thank you for sharing your knowledge and taking all the time to make it easier for us wana be machinists like myself.

Joe, great basic vid. It answered many questions for me.

Joe, thank you so much for taking time to make these videos! You're a brilliant teacher. I'm just getting started as a hobby machinist and these videos are incredibly useful both for teaching me what to look for when I buy kit, and for figuring out what I'm doing wrong when I don't get the results I want.

Thank you for sharing this information Joe! You just answered about 15 of the issues we have been facing with the mill. Yet without you knowing even, what the issues were! Are you clairvoyant or what? This video is now planted in the grey matter!

Thankyou very much ,the graphic demonstration is spot-on.

Awesome job on all of your videos, Joe.

Congratulations on 100K !!! +++You are the Man +++ Best tech videos on KZfaq, in my opinion.

thanks joe pie! i used a trick from your videos to hold a small bearing in my lathe chuck. i just wanted to let you know your videos helped me out with a project and i appreciate what you do!

Haircut looks good man! Makes you look younger. Always love the videos! Super awesome info!

Joe I always learn from your videos, thank you !! Mark

What a grate teacher you are! Thank you.

Joe been watching your vids for some time now... I have to say your content is always 1st class and your knowledge on the subject outstanding..the mere fact you make an animation in real world materials superb for guys like me that can actually understand what you say and mean. Thanks for sharing. Great work...just make sure there are no spiders lurking in one of those collets !

Cool man, Ya I'm designing a tool which needs a quick release chuck/collet/*whatever it just needs to grip a rod* So >>> this video is very helpful as now I understand more and won't have to discover these intricacies which you share. Wisdom and practical experience are king.

Heck Joe, Keith says this is practically magical when I seen this video is 3yrs ago about collets. I drove to PA from Michigan and wanted to touch and feel this Lathe. I invested in the D1-4 adapter to hold the ER40. A complete metric set, giving you a large range to hold your stock. They are from Precision Matthew's. Thank you for your video. In the past, you've responded, I'd like to know if you read this message...

I made an ER-16 though-coolant collet holder for my tailstock. Makes drilling deep holes in titanium much less nerve wracking.

Nice demonstration at the end! Lots to think about now...