Saves the 10 seconds it takes to spin off the nut and change the collet. People have no patience. But I do look at both sides of the sword. If you're somebody that's constantly putting different sizes in and out on a daily basis. I guess those 10 seconds would add up at the end of the day. So it suits its purpose for the right person and job.
@@The_old_grey_wolf Well, another thing you're leaving out is the EZ Twist, since this system completely eliminates the use of a wrench, why do I still need the "keyless chuck"? I mean, the "keyless chuck, not only does it require key/wrench, it never seem secured you, I've since used it and I can't count how many times it just unscrew on it's own and left a disc spinning at 35k rpm by itself, smh. I'll put in some extra 10 seconds work and tighten things by hand at least, I'll trust my own hands.
If you're familiar with power tools, particularly a drill, you'd already know that a traditional chuck requires a key to tighten the jaws to hold your bit. A keyless chuck requires no key...he's using the wrench to fasten the chuck to the threaded end of the Dremel which is two entirely independent operations. Once you tighten the chuck to the threaded end with the wrench, you'll never have to do it again unless you take it off and reinstall it.
Hi. I’m considering getting the dremel 4250, and heard some people had issue with the keyless chuck. I wanted to check to see if you have experienced such issues. Thanks 🙏
thank-you Ken G. , I bought the 4300 and returned it becuase the shaft turned when openng and closing the keyless chuck, The locking button on tool is hit or miss, and putting the wrench defeats the keyless/toolless change.
Is it safe to use the larger cutting wheel with the keyless chuck? Can't find anything online about this (although the Dremel website does *not* list it as one of the recommended uses). I asked ChatGPT and it said "Using a large cutting disk with a keyless chuck can be dangerous as the chuck may not be able to grip the mandrel tightly enough to prevent it from slipping or coming loose during use. This can result in the accessory flying off the tool, causing injury or damage." But dunno whether to trust it.
can these keyless chucks have balance problems? I have a proxxon and with the empty chuck it has some weird vibration/resonance above 16k rpm, and that doesn't happen with the chuck off
Hi and thanks for watching. I can't speak to the safety portion of it because I have no idea. My guess for why Dremel doesn't include these in most of their packages is because this is an upgrade that they want those interested to pay for. That is only a guess though. Thanks again for watching!
The 4 sectors in a collet will center the corresponding shaft very precisely. A 3 jaw chuck may not be as precise- for accuracy and safety always check for runout at the end of the bit and adjust as needed before starting to work. BTW- the wrench feature built into the nose cap (which saves you from having to keept the little wrench nearby) doesn't quite fit the 3 jaw chuck. You can carefully reduce the diameter of the area with the flats by holding a file against it while the Dremel is running. Work carefully and check frequently. If you have calipers, use them to check progess and compare to the collet nut specs as the nose cap DOES work with that.
I can see you used the wrench to tighten the keyless chuck I mean, doesn't that defeat the whole idea of getting a "keyless chuck"? I mean "keyless" chuck is what it's supposed to be isn't it? I know people will say I'm crazy now for pointing this obvious cognitive dissonance out. It's like saying I'm the CEO of a company and equally the apprentice in that company. Somebody please explain to me(God help you) how we're still expected to be using the wrench to tighten a keyless chuck down each time we change bits, I'll wait.
It's not necessary...just like his instruction to turn off and unplug the unit before changing bits is not necessary. I've never once even used the wrench for the standard collet and I use my Dremel(s) regularly for many years.
@@Dayna312 Yes you do, maybe all you're doing is drilling something real soft but, soon as you try cut something tough, your bits might fly off and god knows what it hits. Look, you doubt me, I've got videos on it.
Many times with light loads, finger tightening is all that is needed. Just be careful, make sure bit is in straight (no runout), and use eye protection. Note- the newer Dremels have EZ Twist nose caps (also available online) that do the same job as the wrench and they are already on the tool. They work perfectly with the collet nuts. But the portion on the keyless chuck that has the flats is a little too big in diameter to work with the nose cap. You can put the chuck on the Dremel and carefully hold a small file against that area and turn it down. Use eye protection, work slowly, and measure often (calipers will help gauge progress). Once the nose cap will fit on it- STOP! Now you can retire that little wrench to a safe place!
I'm lost, why use a keyless chuck if you still need to use the wrench everytime?
variation in diameter I guess.
I asked the same question but, I know they'll call me the angry b man.
Saves the 10 seconds it takes to spin off the nut and change the collet. People have no patience. But I do look at both sides of the sword. If you're somebody that's constantly putting different sizes in and out on a daily basis. I guess those 10 seconds would add up at the end of the day. So it suits its purpose for the right person and job.
@@The_old_grey_wolf Well, another thing you're leaving out is the EZ Twist, since this system completely eliminates the use of a wrench, why do I still need the "keyless chuck"?
I mean, the "keyless chuck, not only does it require key/wrench, it never seem secured you, I've since used it and I can't count how many times it just unscrew on it's own and left a disc spinning at 35k rpm by itself, smh. I'll put in some extra 10 seconds work and tighten things by hand at least, I'll trust my own hands.
If you're familiar with power tools, particularly a drill, you'd already know that a traditional chuck requires a key to tighten the jaws to hold your bit. A keyless chuck requires no key...he's using the wrench to fasten the chuck to the threaded end of the Dremel which is two entirely independent operations. Once you tighten the chuck to the threaded end with the wrench, you'll never have to do it again unless you take it off and reinstall it.
Hi. I’m considering getting the dremel 4250, and heard some people had issue with the keyless chuck. I wanted to check to see if you have experienced such issues. Thanks 🙏
thank-you Ken G. , I bought the 4300 and returned it becuase the shaft turned when openng and closing the keyless chuck, The locking button on tool is hit or miss, and putting the wrench defeats the keyless/toolless change.
Thanks for the demo. I just ordered the keyless chuck, and I'm curious if it's compatible with the flex shaft.
Is it safe to use the larger cutting wheel with the keyless chuck? Can't find anything online about this (although the Dremel website does *not* list it as one of the recommended uses). I asked ChatGPT and it said
"Using a large cutting disk with a keyless chuck can be dangerous as the chuck may not be able to grip the mandrel tightly enough to prevent it from slipping or coming loose during use. This can result in the accessory flying off the tool, causing injury or damage."
But dunno whether to trust it.
My chuck is stuck in a closed position, I'm not sure how to open it. Any advice?
can these keyless chucks have balance problems? I have a proxxon and with the empty chuck it has some weird vibration/resonance above 16k rpm, and that doesn't happen with the chuck off
Seems like you are using that wrench, when the chuck is supposed to be keyless?
Does that chuck make Dremel compatible with standard hexagon shank bits?
Yes, if you have something 1/8 inch or less.
Are these less safe or have other disadvantages compared to using the normal collets. If not why don't dremels come with them?
Hi and thanks for watching. I can't speak to the safety portion of it because I have no idea. My guess for why Dremel doesn't include these in most of their packages is because this is an upgrade that they want those interested to pay for. That is only a guess though. Thanks again for watching!
Why don't all cars come with leather interiors?
The 4 sectors in a collet will center the corresponding shaft very precisely. A 3 jaw chuck may not be as precise- for accuracy and safety always check for runout at the end of the bit and adjust as needed before starting to work. BTW- the wrench feature built into the nose cap (which saves you from having to keept the little wrench nearby) doesn't quite fit the 3 jaw chuck. You can carefully reduce the diameter of the area with the flats by holding a file against it while the Dremel is running. Work carefully and check frequently. If you have calipers, use them to check progess and compare to the collet nut specs as the nose cap DOES work with that.
Can it hold a 1/4 shank?
No, holds tools from 1/32-in to 1/8-in.
I can see you used the wrench to tighten the keyless chuck I mean, doesn't that defeat the whole idea of getting a "keyless chuck"? I mean "keyless" chuck is what it's supposed to be isn't it? I know people will say I'm crazy now for pointing this obvious cognitive dissonance out. It's like saying I'm the CEO of a company and equally the apprentice in that company.
Somebody please explain to me(God help you) how we're still expected to be using the wrench to tighten a keyless chuck down each time we change bits, I'll wait.
My thoughts exactly. Waiting with you.🤣
Hi, I just got the chuck and you do not need a wrench to tighten... love your comment BTW 😂😂
It's not necessary...just like his instruction to turn off and unplug the unit before changing bits is not necessary. I've never once even used the wrench for the standard collet and I use my Dremel(s) regularly for many years.
@@Dayna312 Yes you do, maybe all you're doing is drilling something real soft but, soon as you try cut something tough, your bits might fly off and god knows what it hits. Look, you doubt me, I've got videos on it.
Many times with light loads, finger tightening is all that is needed. Just be careful, make sure bit is in straight (no runout), and use eye protection. Note- the newer Dremels have EZ Twist nose caps (also available online) that do the same job as the wrench and they are already on the tool. They work perfectly with the collet nuts. But the portion on the keyless chuck that has the flats is a little too big in diameter to work with the nose cap. You can put the chuck on the Dremel and carefully hold a small file against that area and turn it down. Use eye protection, work slowly, and measure often (calipers will help gauge progress). Once the nose cap will fit on it- STOP! Now you can retire that little wrench to a safe place!
I'm guessing all the keyless chuck does is saves you from having to change collets along with bits because of its range from 1/32nd to 1/8th.
This was very helpful!
Doesn't work for me. I can unscrew the keyless chuck all the way off of the dremel and it still holds tight to any bit that I have in.
Thank you for saving me hours lol
thank you!!
What’s up with the gloves?
con i get one that is for biger shanks such as 5/32 and 3/16?
There is a 1/4 in Mega chuck for Dremels on Ebay.
@@alandaters8547hello. I've been searching for this one for hours and can't seem to find it. Do you have a link by chance? Thanks
Mine was locked closed ...right out of the package. No amount of force could open it !
The runout on these is shocking. The collet at least are straight.
ha. ha. Ha...HA...HA...ha...!!!!