In the screenshot you can see the original block this was based on over on the left, and the PillarRemover block placed on the right. This block is useful for removing certain types of pillars left behind by other clip removers which may be colliding with your item. Check out the description on the item linked below for more information about how to use it.

2x2OutwardsBankedby luk-t-obk | 0 | 906 | 5327