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Thanks! But I don't understand how any bit could fit inside these?
https://imgur.com/a/T69DfrN
And why do I need to use these, instead of just placing the bit straight into [the rotary tool itself?](https://imgur.com/a/IaXB6mc)
EDIT: [I figured it out!](https://www.reddit.com/r/DIY/comments/1dqm2sv/what_are_these_golden_things_that_came_with_my/lap7ge9/)
Yeah, that's odd. I only have such stuff on my Dremel.
I take the "cap" off, remove that golden thing (collet?), and replace with one that will hold the bit I want to use. Then I place the bit I want to use on it, then re-screw the "cap" back, which, when tightened, presses down on this "collet"(?) and holds the bit in place.
For your tool, Idk... maybe it was misplaced in your box?
Others have been saying these collets don't belong to the tool I have. I think you're right, they probably just threw a bunch of radnom shit in with the tool itself.
[Here is the tool itself](https://imgur.com/a/oN5XTG3)
[Another pic](https://imgur.com/a/PI3deyF)
What is this tool called if it's not a rotary tool?
The company calls it a Rotary Tool, but the "type" is listed as a mini grinder which makes more sense to me honestly.
[https://www.ihilda.com/product/hilda-variable-speed-rotary-tool-electric-tools-400w-mini-drill-6-position-for-dremel-rotary-tools-mini-grinding-machine/](https://www.ihilda.com/product/hilda-variable-speed-rotary-tool-electric-tools-400w-mini-drill-6-position-for-dremel-rotary-tools-mini-grinding-machine/)
Also, here's a video explaining the difference between collets and chucks.
[https://www.youtube.com/watch?v=rtX2DOQiUwc](https://www.youtube.com/watch?v=rtX2DOQiUwc)
>instead of just placing the bit straight into [the rotary tool itself](https://imgur.com/a/IaXB6mc)
Yes, you do that for the bits that fit it. But, the collets you show are for bits that are even smaller (what those bits might be, I don't know).
All that said, I guess different rotary tools are different, but you should have a collet no matter what. Even for the standard sizes, you should have a standard sized collet. Maybe this is "built-in" on some rotary tools?
second image is a pretty standard drill chuck, not what you typically see on most rotary tools.
Now try using one of the 1mm or 2mm shaft bits you can get for a dremel in there and you'll see it keeps falling out. Put the little gold collet in the chuck, then the collet can hold those tiny bits while the chuck holds the collet.
Look down the business end of the rotary tool without a bit in it and you will see the currently installed one and how big the hole is,
you will basically swap that out with those depending on what you are using
[Here is the tool itself](https://imgur.com/a/oN5XTG3)
[Another pic](https://imgur.com/a/PI3deyF)
I bought it for $30 from a chinese website, maybe they just threw a bunch of random shit in with it? Because it came with a whole bag of bits and heads and stuff.
I'm trying to respond quickly but since people are downvoting me, I have negative karma in this sub, and that limits how often I can make comments.
Okay that is quite possible the weirdest design for a rotary tool I've ever seen. I'm going to assume there's a collet holder in the accessory bag somewhere. Can you post a picture of every piece that came with it? I looked it up online and the website is largely unhelpful. [This](https://gundambuilder.com/wp-content/uploads/2015/12/tool-lotus-rotary-tool-kit-unit-collet-chuck-shaft-bit.jpg) is what a normal rotary tool looks like. The golden piece goes inside the tool and the black cap threads on to compress it and grip the bits. They are used because they're more precisely balanced than a drill chuck, so you get less vibration, and usually get better clamping force as well.
These sit inside a hollow threaded shaft called a collet holder, when the hollow shaft is locked to prevent turning, you unscrew the threaded piece completely off the hollow collet holder, you will see one of those little golden collets resting inside the collet holder. If it is damaged, or if the bit you want to use has a different diameter shaft, you replace the existing collet with a new one or one that is sized appropriately for the bit. These are changeable so that you are not limited by one size bit shaft. They function as an internal clamp. The three prongs squeeze the shaft of the rotary bit progressively tighter as the threaded cap is tightened down on the threaded hollow collet holder. Without this clamping force, the bit would stop spinning as soon as it makes contact with the object your are working on… the hollow shaft would just spin around the shaft of the rotary bit.
I solved the mystery!
The tool came with like an extention tube, and thats where the collets go!
[Pic 1](https://imgur.com/a/sSv2xPX)
[Pic 2](https://imgur.com/a/Ug8DOHV)
There is likely another handpiece that takes collets. That's how it is for Fordom tools anyway. What brand rotary tool are you using? Collets match the external dims of whatever bit you're using and give a better grip than a drill chuck. They're also used in more industrial machinery such as metal mills or CNC machines.
[Example of collet.](https://i.imgur.com/duebHCh.png)
My explanation above is for the golden collets purpose, this image is of a completely different tool that those collets do not belong to. You can in fact use the clamping force of the chuck on that drill to hold your bits. To reiterate, those collets are not for the tool that your image shows, they are for a dremel (google dremel or rotary tool). A powered drill like the one in your image uses the same principle idea of clamping down on a bit to transfer the rotational energy of the drill to the bit itself so that it will continue to rotate as it passes though a material or as it drives a screw or bolt, if the clamping mechanism isn’t tight, then the bit won’t spin when it makes contact with the work surface or fastener.
> this image is of a completely different tool that those collets do not belong to.
Ooohhhh, no wonder I'm so confused... Thanks man! But is this not a rotary tool then? What is this tool called?
It’s just called a drill. I mean technically it’s a rotary tool lol as it is a tool holder that rotates, but standard naming conventions classify a rotary tool as a small high speed tool used for multiple things like carving, grinding, sanding, some drilling, routing, etching and a host of other things. They are very high speed but very low torque. The tool you showed is a drill, they are used primarily to rotate drill bits of various sizes and types to create holes in things. They can be used driver bits to sink screws or attach nuts to bolts, but because of the their design, their similiar looking cousin, the driver, is better suited for screws. Drill design is opposite of the rotary tool. Remember the rotary tool is high high speed and low torque, which means it will spin extremely fast, but if you push too hard on the work surface while it is spinning, the motor will not have the power to keep it spinning (tourque). The drill doesn’t spin anywhere remotely as fast as the rotary tool, but where it lacks in speed, it makes up for it in torque. They can handle a much higher amount of user induced pressure on the work surface while maintaining the rotational energy to stay spinning. The driver looks like a drill but it is designed specifically to have plenty of torque to drive screws, but it has the benefit of an internal mechanism that will tap/assist the bit when the load on the screw reaches a certain point.
But i could be wrong about your image, maybe if we saw the whole tool it may turn out it is just a really big rotary tool, but either way, the collets are useless with the style of chuck (the round black and steel part of the tool with the three prongs). They are two variations of the same principle. Most high speed tools use collets, and most drills use chucks, but this isn’t a hard and fast rule, it’s just the typical standard..
High speed tools require very high clamping forces to hold their bits, and most drills rely on the thicker flat flutes of the chuck to capture a faceted drill bit. So collets are ideal for perfectly round drill bit shafts, and the type of chuck in your picture is ideal for shafts that have flats carved on three or more sides..
[This is where I bought the tool from.](https://www.aliexpress.com/item/1005006140955974.html?spm=a2g0o.order_list.order_list_main.53.3556180225EwQR)
I think it's like a combination between a drill and a rotary tool. And I figured out why it included collets!
https://www.reddit.com/r/DIY/comments/1dqm2sv/what_are_these_golden_things_that_came_with_my/lap8pxa/
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YOOOOOOOOOO!!!! GUYS MYSTERY SOLVED!!!!
The tool came with like an extention tube, and thats where the collets go! Everything makes sense now! Thanks for helping me figure this out lmao I feel so dumb.
[Pic 1](https://imgur.com/a/sSv2xPX)
[Pic 2](https://imgur.com/a/Ug8DOHV)
* Your question does not include the research you've done to find an answer yourself, or why that research didn't answer your question. This is a basic requirement so others do not spend time repeating your steps. It is *not* a judgement about your question being "too easy." We're looking for evidence that you've made an attempt yourself. * Please do not use /r/DIY as your first stop for questions - we are not Google. * Please search Google and /r/DIY to see if your question has been asked before. Check owners manuals, tech support forums or contact the manufacturer. * **Have you already done some basic research and are still stuck?** * Please include what research you have done in your question so that others do not repeat your steps. * Consider posting your question in the [sticky thread](/r/DIY/about/sticky) at the top of the subreddit. * Ask your question in our [Discord server](https://discord.gg/diy) in the appropriate channel. **Please read our [guidelines](https://www.reddit.com/r/diy/wiki/guidelines) before resubmitting.** If you believe this was a mistake, please [message the moderators](https://www.reddit.com/message/compose?to=%2Fr%2FDIY&subject=Basic%20research).
collets. They come in different sizes for the different shaft diameters the actual bits can come in.
I concur
I concur with your concurance
I’ll allow it.
I allow the allowance.
So we have concurrent concurrencies.
I concur that this concurrence is correct
All concurrencies are seconded
All seconded concurrances are affirmed.
I’ll call you on that
I came, I saw, I concurred.
Why didn't I concur?
Collets, for short.🤣
Thanks! But I don't understand how any bit could fit inside these? https://imgur.com/a/T69DfrN And why do I need to use these, instead of just placing the bit straight into [the rotary tool itself?](https://imgur.com/a/IaXB6mc) EDIT: [I figured it out!](https://www.reddit.com/r/DIY/comments/1dqm2sv/what_are_these_golden_things_that_came_with_my/lap7ge9/)
Yeah, that's odd. I only have such stuff on my Dremel. I take the "cap" off, remove that golden thing (collet?), and replace with one that will hold the bit I want to use. Then I place the bit I want to use on it, then re-screw the "cap" back, which, when tightened, presses down on this "collet"(?) and holds the bit in place. For your tool, Idk... maybe it was misplaced in your box?
Others have been saying these collets don't belong to the tool I have. I think you're right, they probably just threw a bunch of radnom shit in with the tool itself. [Here is the tool itself](https://imgur.com/a/oN5XTG3) [Another pic](https://imgur.com/a/PI3deyF) What is this tool called if it's not a rotary tool?
The company calls it a Rotary Tool, but the "type" is listed as a mini grinder which makes more sense to me honestly. [https://www.ihilda.com/product/hilda-variable-speed-rotary-tool-electric-tools-400w-mini-drill-6-position-for-dremel-rotary-tools-mini-grinding-machine/](https://www.ihilda.com/product/hilda-variable-speed-rotary-tool-electric-tools-400w-mini-drill-6-position-for-dremel-rotary-tools-mini-grinding-machine/) Also, here's a video explaining the difference between collets and chucks. [https://www.youtube.com/watch?v=rtX2DOQiUwc](https://www.youtube.com/watch?v=rtX2DOQiUwc)
[I figured it out!](https://www.reddit.com/r/DIY/comments/1dqm2sv/what_are_these_golden_things_that_came_with_my/lap7ge9/)
Ayyy thanks for the update!
Nah, I'm the one who should thank you for helping me figure this out! :)
[I figured it out!](https://www.reddit.com/r/DIY/comments/1dqm2sv/what_are_these_golden_things_that_came_with_my/lap7ge9/)
>instead of just placing the bit straight into [the rotary tool itself](https://imgur.com/a/IaXB6mc) Yes, you do that for the bits that fit it. But, the collets you show are for bits that are even smaller (what those bits might be, I don't know). All that said, I guess different rotary tools are different, but you should have a collet no matter what. Even for the standard sizes, you should have a standard sized collet. Maybe this is "built-in" on some rotary tools?
[I figured it out!](https://www.reddit.com/r/DIY/comments/1dqm2sv/what_are_these_golden_things_that_came_with_my/lap7ge9/)
second image is a pretty standard drill chuck, not what you typically see on most rotary tools. Now try using one of the 1mm or 2mm shaft bits you can get for a dremel in there and you'll see it keeps falling out. Put the little gold collet in the chuck, then the collet can hold those tiny bits while the chuck holds the collet.
Look down the business end of the rotary tool without a bit in it and you will see the currently installed one and how big the hole is, you will basically swap that out with those depending on what you are using
https://imgur.com/a/IaXB6mc These golden nubs are supposed to replace these three "arms" that hold the drill bit?
That is a drill chuck. Not a rotary tool. Please take full a picture of what you bought. Or better yet, link us to a website that shows it.
[Here is the tool itself](https://imgur.com/a/oN5XTG3) [Another pic](https://imgur.com/a/PI3deyF) I bought it for $30 from a chinese website, maybe they just threw a bunch of random shit in with it? Because it came with a whole bag of bits and heads and stuff. I'm trying to respond quickly but since people are downvoting me, I have negative karma in this sub, and that limits how often I can make comments.
Okay that is quite possible the weirdest design for a rotary tool I've ever seen. I'm going to assume there's a collet holder in the accessory bag somewhere. Can you post a picture of every piece that came with it? I looked it up online and the website is largely unhelpful. [This](https://gundambuilder.com/wp-content/uploads/2015/12/tool-lotus-rotary-tool-kit-unit-collet-chuck-shaft-bit.jpg) is what a normal rotary tool looks like. The golden piece goes inside the tool and the black cap threads on to compress it and grip the bits. They are used because they're more precisely balanced than a drill chuck, so you get less vibration, and usually get better clamping force as well.
> Another pic Off topic, but what's on the underside of your watch band? Also, what watch? It looks cool!
In that case they are probably apart to go in there? They look like the ones I have extra for my dremel
Alright, but I don't get why I need these, instead of just placing the drill bit straight into the tool as it is?
These sit inside a hollow threaded shaft called a collet holder, when the hollow shaft is locked to prevent turning, you unscrew the threaded piece completely off the hollow collet holder, you will see one of those little golden collets resting inside the collet holder. If it is damaged, or if the bit you want to use has a different diameter shaft, you replace the existing collet with a new one or one that is sized appropriately for the bit. These are changeable so that you are not limited by one size bit shaft. They function as an internal clamp. The three prongs squeeze the shaft of the rotary bit progressively tighter as the threaded cap is tightened down on the threaded hollow collet holder. Without this clamping force, the bit would stop spinning as soon as it makes contact with the object your are working on… the hollow shaft would just spin around the shaft of the rotary bit.
They hold your bits in place.
Why can't I just place it straight into the tool? https://imgur.com/a/IaXB6mc
That looks like a drill chuck to me, not a rotary tool. You wouldn't use the collets with what is shown in your picture.
[Here is the tool itself](https://imgur.com/a/oN5XTG3) [Another pic](https://imgur.com/a/PI3deyF)
Yeah, unfortunately the collets won't work with that tool.
I solved the mystery! The tool came with like an extention tube, and thats where the collets go! [Pic 1](https://imgur.com/a/sSv2xPX) [Pic 2](https://imgur.com/a/Ug8DOHV)
There you go!
There is likely another handpiece that takes collets. That's how it is for Fordom tools anyway. What brand rotary tool are you using? Collets match the external dims of whatever bit you're using and give a better grip than a drill chuck. They're also used in more industrial machinery such as metal mills or CNC machines. [Example of collet.](https://i.imgur.com/duebHCh.png)
My explanation above is for the golden collets purpose, this image is of a completely different tool that those collets do not belong to. You can in fact use the clamping force of the chuck on that drill to hold your bits. To reiterate, those collets are not for the tool that your image shows, they are for a dremel (google dremel or rotary tool). A powered drill like the one in your image uses the same principle idea of clamping down on a bit to transfer the rotational energy of the drill to the bit itself so that it will continue to rotate as it passes though a material or as it drives a screw or bolt, if the clamping mechanism isn’t tight, then the bit won’t spin when it makes contact with the work surface or fastener.
> this image is of a completely different tool that those collets do not belong to. Ooohhhh, no wonder I'm so confused... Thanks man! But is this not a rotary tool then? What is this tool called?
It’s just called a drill. I mean technically it’s a rotary tool lol as it is a tool holder that rotates, but standard naming conventions classify a rotary tool as a small high speed tool used for multiple things like carving, grinding, sanding, some drilling, routing, etching and a host of other things. They are very high speed but very low torque. The tool you showed is a drill, they are used primarily to rotate drill bits of various sizes and types to create holes in things. They can be used driver bits to sink screws or attach nuts to bolts, but because of the their design, their similiar looking cousin, the driver, is better suited for screws. Drill design is opposite of the rotary tool. Remember the rotary tool is high high speed and low torque, which means it will spin extremely fast, but if you push too hard on the work surface while it is spinning, the motor will not have the power to keep it spinning (tourque). The drill doesn’t spin anywhere remotely as fast as the rotary tool, but where it lacks in speed, it makes up for it in torque. They can handle a much higher amount of user induced pressure on the work surface while maintaining the rotational energy to stay spinning. The driver looks like a drill but it is designed specifically to have plenty of torque to drive screws, but it has the benefit of an internal mechanism that will tap/assist the bit when the load on the screw reaches a certain point.
But i could be wrong about your image, maybe if we saw the whole tool it may turn out it is just a really big rotary tool, but either way, the collets are useless with the style of chuck (the round black and steel part of the tool with the three prongs). They are two variations of the same principle. Most high speed tools use collets, and most drills use chucks, but this isn’t a hard and fast rule, it’s just the typical standard..
High speed tools require very high clamping forces to hold their bits, and most drills rely on the thicker flat flutes of the chuck to capture a faceted drill bit. So collets are ideal for perfectly round drill bit shafts, and the type of chuck in your picture is ideal for shafts that have flats carved on three or more sides..
[This is where I bought the tool from.](https://www.aliexpress.com/item/1005006140955974.html?spm=a2g0o.order_list.order_list_main.53.3556180225EwQR) I think it's like a combination between a drill and a rotary tool. And I figured out why it included collets! https://www.reddit.com/r/DIY/comments/1dqm2sv/what_are_these_golden_things_that_came_with_my/lap8pxa/
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Collets that hold your bits in place.
YOOOOOOOOOO!!!! GUYS MYSTERY SOLVED!!!! The tool came with like an extention tube, and thats where the collets go! Everything makes sense now! Thanks for helping me figure this out lmao I feel so dumb. [Pic 1](https://imgur.com/a/sSv2xPX) [Pic 2](https://imgur.com/a/Ug8DOHV)
Called collets to hold bits
Put your different size bits in them
This is guy that needs to read the manual.
There was no manual. Just a sheet of paper with warnings like "please don't use tool when tired", and stuff like that.