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Dimensioning an Angle with No Workplane

Here me out. I have 4 holes that are drilled at 45 degree angles. The 4 holes are spread around an inside a large taper. I can check that no problem. Let focus on 1 hole. In order to probe it, 1 tip needs to be A45B-105 to be inline with the vector of the cylinder. How can I check to see if the angle of the hole is off perpendicular to its angle???? Basically if the hole is wiggling side to side.