# Bits braking **URL:** \ **Category:** Troubleshooting\ **Created:** [April 19, 2016, 1:08pm UTC](https://community.inventables.com/t/bits-braking/22673 "2016-04-19T13:08:56Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![UtkanSenyuz](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/utkansenyuz/32/84933_2.png) [@UtkanSenyuz](https://community.inventables.com/u/UtkanSenyuz)\ **Post date:** [April 19, 2016, 1:08pm UTC](https://community.inventables.com/t/bits-braking/22673/1 "2016-04-19T13:08:56Z")
I am having problems with bits breaking. We are trying yo cut 1/2 mdf (with suggested cut rates) I have Bosch Colt with collet adapter . I broke about 3 bits around the same area. ![](https://canada1.discourse-cdn.com/flex009/uploads/inventables/original/3X/a/9/a93a5ab55251d8733ddf77908a6ca67bf0652583.jpg) Any idea why? ---
**Author:** ![AllenMassey](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/allenmassey/32/84441_2.png) [@AllenMassey](https://community.inventables.com/u/AllenMassey)\ **Post date:** [April 19, 2016, 2:18pm UTC](https://community.inventables.com/t/bits-braking/22673/4 "2016-04-19T14:18:26Z")
Either the bit was not inserted correctly into the collet or the adapter is crap and let the bit slide down (very likely). Does your MDF show a cut much deeper than expected right before the bit broke? ---
**Author:** ![UtkanSenyuz](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/utkansenyuz/32/84933_2.png) [@UtkanSenyuz](https://community.inventables.com/u/UtkanSenyuz)\ **Post date:** [April 19, 2016, 2:46pm UTC](https://community.inventables.com/t/bits-braking/22673/5 "2016-04-19T14:46:30Z")
The bits was inserted all the way to the flutes tightened up nicely. It looked like it was vibrating a lot so I stop the carve. When z goes up tip falls off. Now I am thinking the adapter I got from Amazon is defective and some how its not tightening evenly. I will get a new adapter to see if it helps. ---
**Author:** ![DanBrown](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/danbrown/32/44929_2.png) [@DanBrown](https://community.inventables.com/u/DanBrown)\ **Post date:** [April 19, 2016, 3:12pm UTC](https://community.inventables.com/t/bits-braking/22673/7 "2016-04-19T15:12:42Z")
^ That. Quite a few times that. They’re not very expensive, and work great! ---
**Author:** ![sketch42](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/sketch42/32/76722_2.png) [@sketch42](https://community.inventables.com/u/sketch42)\ **Post date:** [April 20, 2016, 1:34am UTC](https://community.inventables.com/t/bits-braking/22673/9 "2016-04-20T01:34:53Z")
Yep, Elaire collets are the ones you want to stop the problem and improve your carves greatly. ---
**Author:** ![UtkanSenyuz](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/utkansenyuz/32/84933_2.png) [@UtkanSenyuz](https://community.inventables.com/u/UtkanSenyuz)\ **Post date:** [April 20, 2016, 2:06am UTC](https://community.inventables.com/t/bits-braking/22673/10 "2016-04-20T02:06:13Z")
Thanks everyone ! I ordered the collet from Elaire ---
**Author:** ![DanBrown](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/danbrown/32/44929_2.png) [@DanBrown](https://community.inventables.com/u/DanBrown)\ **Post date:** [April 20, 2016, 2:37pm UTC](https://community.inventables.com/t/bits-braking/22673/11 "2016-04-20T14:37:09Z")
Incidentally, don’t be worried if you don’t get a shipping notification, etc. I’ve ordered from them twice, and neither time have I actually received a shipping notification or tracking number. Both times they’ve shipped quickly and the collet has shown up with no trouble at all, so don’t sweat it if it happens to you. 🙂