@Minidb I think that maybe you have it backwards, the depth doesn’t set the width of a v carve, it’s the width that sets the depth. The bit will only go as deep as it needs to to fit between the lines. There is a flat depth with a v carve in Vectric software but that does not make the bit go that deep, what it does is stop the bit from going any deeper than the flat depth.
Here is a link to a post I made with a drawing of how v carve depth works.