You can do this several ways. YMMV in stability, efficiency, and adaptability. I did not examine your uploaded assembly.
In Skeleton Sketch Part method, you can create your hole sketch in the SSP and apply it equally to both other components.
In contextual part method, you can Convert Entities of the first hole sketch into the sketch of the second set of holes. This surely requires body alignment to work out right.
In assembly feature method, you can place and define both components, then create an Assembly Feature of Extruded Cut which applies to those multiple components (in scope). Using options in the Assembly Feature, you can perpetuate the changes into the components themselves. This may be simplest to achieve, but to me it seems least stable with other changes.