# How do I use smaller pocketing bit without running entire file **URL:** \ **Category:** Uncategorized\ **Created:** [June 11, 2021, 8:57pm UTC](https://forum.onefinitycnc.com/t/how-do-i-use-smaller-pocketing-bit-without-running-entire-file/6062 "2021-06-11T20:57:55Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Spes](https://avatars.discourse-cdn.com/v4/letter/s/ea666f/32.png) [@Spes](https://forum.onefinitycnc.com/u/Spes)\ **Post date:** [June 11, 2021, 8:57pm UTC](https://forum.onefinitycnc.com/t/how-do-i-use-smaller-pocketing-bit-without-running-entire-file/6062/1 "2021-06-11T20:57:55Z")
Hello, Quite new at this. I am just messing around making my street name and number. I created a pocket tool path so the name and numbers will be raised. The clearing tool path uses a ¹/⁴" bit. 1-hour. No biggy. I then need to use a ¹/¹⁶" bit to get the fine details in the name. That says like 7-hours! Lol My question is, is there a way to tell that tool path to only cut around the street name, and not the whole pocketed area? ---
**Author:** ![Cdavis](https://avatars.discourse-cdn.com/v4/letter/c/e9bcb4/32.png) [@Cdavis](https://forum.onefinitycnc.com/u/Cdavis)\ **Post date:** [June 11, 2021, 9:31pm UTC](https://forum.onefinitycnc.com/t/how-do-i-use-smaller-pocketing-bit-without-running-entire-file/6062/2 "2021-06-11T21:31:08Z")
Recently watched a Mark Lindsay YouTube video and he said that in Vectric software (Vcarve, Aspire) if you choose two different bits for the same pocketing tool path, in your example a 1/4” em followed by a 1/16” em, it would clear as much as possible with the larger bit, then only remove what is remaining with the smaller bit. Haven’t tried it so can’t guarantee it will work. ---
**Author:** ![kriaz101](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/kriaz101/32/32881_2.png) [@kriaz101](https://forum.onefinitycnc.com/u/kriaz101)\ **Post date:** [June 11, 2021, 11:45pm UTC](https://forum.onefinitycnc.com/t/how-do-i-use-smaller-pocketing-bit-without-running-entire-file/6062/3 "2021-06-11T23:45:35Z")
I think you should use a “V” bit, perhaps a 90-V. It would cut around the letters a lot quicker. Then you can use either 1/8 bit in combination of larger bit to clear the remaining. You are attempting to make the 1/16 inch endmill to do the V-Bits’ job and it is going to take a long time, as 1/16 is a lot of detail. Also, you can play around with increasing plung rate, increasing feeds/speed. Hope it helps. ---
**Author:** ![cyberreefguru](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/cyberreefguru/32/27385_2.png) [@cyberreefguru](https://forum.onefinitycnc.com/u/cyberreefguru)\ **Post date:** [June 14, 2021, 5:26pm UTC](https://forum.onefinitycnc.com/t/how-do-i-use-smaller-pocketing-bit-without-running-entire-file/6062/4 "2021-06-14T17:26:19Z")
Hello @Spes - it depends which CAM software you are using. In Fusion 360 you would do rest machining - tell Fusion the size of the previous bit, and it will exclude everything the previous bit removed from the current op. I believe Vectric has something similar. Or you can use a profile operation with a V-bit as @kriaz101 mentioned. Hope this helps. -Tom ---
**Author:** ![YXYJack](https://avatars.discourse-cdn.com/v4/letter/y/c67d28/32.png) [@YXYJack](https://forum.onefinitycnc.com/u/YXYJack)\ **Post date:** [June 14, 2021, 8:37pm UTC](https://forum.onefinitycnc.com/t/how-do-i-use-smaller-pocketing-bit-without-running-entire-file/6062/5 "2021-06-14T20:37:07Z")
You can do this with ‘smart’ CAM software like others have said. If you don’t have smart CAM software (eg CarbideCreate like I use) you can sometimes achieve a similar result by drawing a bounding vector around the shapes needing the smaller bit, and call for a pocketing operation between the two. -Mark