MM Hole Callout on a Standard Drawing

Slot Dimensioning - Basics, ASME slot drawing callout Is there a callout to give the size of slots constructed in sheetmetal? I've searched, and not found an automatic size callout for the slot slot jelly The figure shows a system of two parts – machined part with slot and mating part

slot better features and Slot features etc These features are always related to basic dimensions or datum within the stated tolerance and generally at maximum material