# Choosing right bit/size for job **URL:** \ **Category:** X-Carve\ **Created:** [August 25, 2015, 6:20pm UTC](https://community.inventables.com/t/choosing-right-bit-size-for-job/12375 "2015-08-25T18:20:20Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![DanielVanDerMescht](https://avatars.discourse-cdn.com/v4/letter/d/839c29/32.png) [@DanielVanDerMescht](https://community.inventables.com/u/DanielVanDerMescht)\ **Post date:** [August 25, 2015, 6:20pm UTC](https://community.inventables.com/t/choosing-right-bit-size-for-job/12375/1 "2015-08-25T18:20:20Z")
Hi I am currently having issues with my Easel choosing right bit sizes and bits. When choosing between inch and mm bit sizes. ( I prefer mm) It always give me error that the bit I choose is too big for the job I want to create. Even tho I choose the smallest bit and still change back to inch and tell me its too big. I have set default settings to mm and specifying the correct bit size. I am really novice to cnc and struggling to get my x-carve up and running. Even when doing a simple ‘‘clamp project’’. It either pushes the bit from mm to inch and damage my project. Cutting too deep etc. So far I have only used MDF as material as I dont want to kill some of my bits with heavier material. I want to do alot more engraving. All help will be greatly appreciated. ---
**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:** [August 25, 2015, 6:32pm UTC](https://community.inventables.com/t/choosing-right-bit-size-for-job/12375/2 "2015-08-25T18:32:30Z")
If you want to do engraving (or text carving), I would recommend you look into get a nice set of Vbits. a 30, 60 and 90 Degree Vbits will do a really nice job for you if you have the right software to create the tool path. F-Engrave from Scorthworks [F-Engrave](http://www.scorchworks.com/Fengrave/fengrave.html) is a nice free way to get started with vbits. [http://www.ebay.com/itm/6x-32mm-60-Deg-V-Groove-Double-Ended-Solid-Carbide-Router-Bit-/171320646167?hash=item27e3819a17](http://www.ebay.com/itm/6x-32mm-60-Deg-V-Groove-Double-Ended-Solid-Carbide-Router-Bit-/171320646167?hash=item27e3819a17) ---
**Author:** ![AlanDavis](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/alandavis/32/4710_2.png) [@AlanDavis](https://community.inventables.com/u/AlanDavis)\ **Post date:** [August 25, 2015, 6:52pm UTC](https://community.inventables.com/t/choosing-right-bit-size-for-job/12375/3 "2015-08-25T18:52:30Z")
6 mm makes 0.236", how do you use this bit on either Colette. Do you have to have special Colette for this. Because it is killer price. ---
**Author:** ![DanielVanDerMescht](https://avatars.discourse-cdn.com/v4/letter/d/839c29/32.png) [@DanielVanDerMescht](https://community.inventables.com/u/DanielVanDerMescht)\ **Post date:** [August 25, 2015, 6:56pm UTC](https://community.inventables.com/t/choosing-right-bit-size-for-job/12375/4 "2015-08-25T18:56:00Z")
Hi Allen I did download the F-engrave software. And still figuring out the hows. Also waiting on my new collet from Inventables. So that I can take bigger shank sizes. Thanks for the quick reply. ---
**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:** [August 25, 2015, 6:57pm UTC](https://community.inventables.com/t/choosing-right-bit-size-for-job/12375/5 "2015-08-25T18:57:56Z")
I bought the 6mm collet just so I could use these bits.