# Anyone know if they make this in er20? **URL:** \ **Category:** Off Topic\ **Created:** [August 1, 2026, 3:50pm UTC](https://forum.onefinitycnc.com/t/anyone-know-if-they-make-this-in-er20/39447 "2026-08-01T15:50:30Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![HardtailSr](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/hardtailsr/32/35326_2.png) [@HardtailSr](https://forum.onefinitycnc.com/u/HardtailSr)\ **Post date:** [August 1, 2026, 3:50pm UTC](https://forum.onefinitycnc.com/t/anyone-know-if-they-make-this-in-er20/39447/1 "2026-08-01T15:50:30Z")
![image](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/3X/5/6/560229f4f4bf2f3d2796bcca9d959ea084fd4447.png) so far I have only found it for c5 collets ---
**Author:** ![TMToronto](https://avatars.discourse-cdn.com/v4/letter/t/7ea924/32.png) [@TMToronto](https://forum.onefinitycnc.com/u/TMToronto)\ **Post date:** [August 1, 2026, 4:10pm UTC](https://forum.onefinitycnc.com/t/anyone-know-if-they-make-this-in-er20/39447/2 "2026-08-01T16:10:46Z")
What exactly does it do? Can you share the link. ---
**Author:** ![Derf](https://avatars.discourse-cdn.com/v4/letter/d/76d3ee/32.png) [@Derf](https://forum.onefinitycnc.com/u/Derf)\ **Post date:** [August 1, 2026, 6:44pm UTC](https://forum.onefinitycnc.com/t/anyone-know-if-they-make-this-in-er20/39447/3 "2026-08-01T18:44:30Z")
It’s for holding round parts with a collet. it is bolted to the table. Typically they are for larger parts than an ER 20 would hold, hence the 5C size which would go up to around 1.250. ---
**Author:** ![TMToronto](https://avatars.discourse-cdn.com/v4/letter/t/7ea924/32.png) [@TMToronto](https://forum.onefinitycnc.com/u/TMToronto)\ **Post date:** [August 1, 2026, 6:48pm UTC](https://forum.onefinitycnc.com/t/anyone-know-if-they-make-this-in-er20/39447/4 "2026-08-01T18:48:57Z")
Tnx, that is what I thought. I have seen them in square or hex blocks for ERxx collets. ---
**Author:** ![TMToronto](https://avatars.discourse-cdn.com/v4/letter/t/7ea924/32.png) [@TMToronto](https://forum.onefinitycnc.com/u/TMToronto)\ **Post date:** [August 1, 2026, 6:49pm UTC](https://forum.onefinitycnc.com/t/anyone-know-if-they-make-this-in-er20/39447/5 "2026-08-01T18:49:55Z")
Here is one that looked interesting. Not sure about tolerances or how well it is machined… [https://www.aliexpress.com/item/1005008457189748.html?src=google&src=google&albch=shopping&acnt=272-267-0231&isdl=y&slnk=&plac=&mtctp=&albbt=Google\_7\_shopping&aff\_platform=google&aff\_short\_key=UneMJZVf&gclsrc=aw.ds&albagn=888888&ds\_e\_adid=&ds\_e\_matchtype=&ds\_e\_device=c&ds\_e\_network=x&ds\_e\_product\_group\_id=&ds\_e\_product\_id=en1005008457189748&ds\_e\_product\_merchant\_id=773186455&ds\_e\_product\_country=CA&ds\_e\_product\_language=en&ds\_e\_product\_channel=online&ds\_e\_product\_store\_id=&ds\_url\_v=2&albcp=20695954287&albag=&isSmbAutoCall=false&needSmbHouyi=false&gad\_source=1&gad\_campaignid=20705699266&gbraid=0AAAAAoukdWP7N\_\_hYpF2eJirVR8Ay\_rGf&gclid=CjwKCAjwsrbTBhAvEiwA0Bpp4VQv2FBl8bFqqOkPqwq\_bKO3v3HfqitBr3iytr7Bz7lnmtb7ongjQxoCY4EQAvD\_BwE](https://www.aliexpress.com/item/1005008457189748.html?src=google&src=google&albch=shopping&acnt=272-267-0231&isdl=y&slnk=&plac=&mtctp=&albbt=Google_7_shopping&aff_platform=google&aff_short_key=UneMJZVf&gclsrc=aw.ds&albagn=888888&ds_e_adid=&ds_e_matchtype=&ds_e_device=c&ds_e_network=x&ds_e_product_group_id=&ds_e_product_id=en1005008457189748&ds_e_product_merchant_id=773186455&ds_e_product_country=CA&ds_e_product_language=en&ds_e_product_channel=online&ds_e_product_store_id=&ds_url_v=2&albcp=20695954287&albag=&isSmbAutoCall=false&needSmbHouyi=false&gad_source=1&gad_campaignid=20705699266&gbraid=0AAAAAoukdWP7N__hYpF2eJirVR8Ay_rGf&gclid=CjwKCAjwsrbTBhAvEiwA0Bpp4VQv2FBl8bFqqOkPqwq_bKO3v3HfqitBr3iytr7Bz7lnmtb7ongjQxoCY4EQAvD_BwE) ---
**Author:** ![joejk](https://avatars.discourse-cdn.com/v4/letter/j/aeb1de/32.png) [@joejk](https://forum.onefinitycnc.com/u/joejk)\ **Post date:** [August 2, 2026, 2:37am UTC](https://forum.onefinitycnc.com/t/anyone-know-if-they-make-this-in-er20/39447/6 "2026-08-02T02:37:13Z")
@HardtailSr The 5C collet holder is commonly used for production work in metal. You could set it up on a milling machine and do thins like making nuts, bolts, mill a hex on a rod, etc. I used one similar to do many things on a mill as a machinist in a job shop. Just curious on why you are looking for a tool like this. @TMToronto The link you had above with the ER collet set up, I think would be the business end of live tooling on a CNC lathe spinning a drill or end mill. Or it cold be used on the spindle of a lathe to spin rod material that is ground to size. It could be used on a 4th axis and/or a 5th axis machine tool. I guess if you are thinking of ways to make stuff, is always a good thing even if you go down a road and find out it won’t work or does work. I always had the mind set of “You can do anything if you put your mind to it and you are only limited by your imagination.” Cheers Joe ---
**Author:** ![HardtailSr](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/hardtailsr/32/35326_2.png) [@HardtailSr](https://forum.onefinitycnc.com/u/HardtailSr)\ **Post date:** [August 4, 2026, 1:34pm UTC](https://forum.onefinitycnc.com/t/anyone-know-if-they-make-this-in-er20/39447/7 "2026-08-04T13:34:52Z")
thanks, I already use a square block. what interested me was that handle because it looks like it would speed things up a few seconds for what I do. kind of a quick-change thing. I suppose I could just weld a handle on the collet nut. and no it is not for the spindle lol a handle on that collet nut would be a dangerous thing.