hi, I have an aluminum housing for a small gearbox where the bearing seats are, of course, critical. I need to hold tight tolerances on the ID and OD, but only over a short engagement length of about 15 mm at the front end of the bore, so the bearings can be a light press fit. The rest of the part doesn’t need such high precision. What’s the best way to notate this on the drawing so it’s clear to manufacturing and inspection that the tolerance only applies to that localized section?