Help me to perforate

Guys hello I have this ribs what I want to perforate I have a line guide what I evaluated in the middle I found a incorrect plane to draw the circle cause if I try to rotate the plane in the other ribs does not correspond, what I have to do to get the perforations? (4.0 MB)

R U looking for this (4.0 MB)

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Ey thank u very much it works nice. Could you show me another way to create a plane with that line and the middle point, what another references I need?

CHECK (4.0 MB)

i just want see another way … thanks again!