Proper slotted hole callout question

If your shop doesn't like the hole call-out, and I'm not faulting them for that, I'd suggest just adding dimensions to the slot.  That should greatly diminish the chances for mistakes.

Hi Marcus, 1st find out what the company standard is for slot callouts. If you're not currently dimensioning it that way then do so. If what you're doing is correct then point that out to the shop. The method shown here is acceptable but each place likes it a little different. Even dimensioning the slot location is done differently from place to place. If there is no specific method called out in any standard then work with the shop and dimension it accordingly as long as it meets basic ASME Y14.5 or at least a basic drafting standard.