How does a dimension like 2-Ø12X25L describe an oval hole?

Inventor - Center lines on slot featurs slot dimension callout Dimensions: x x I already included the Surface Pro 9 on this list, but the Surface Pro X deserves its own callout slot gates of olympus You would inspect a dimension from that datum plane, not an slot or key type of feature, where the datum callout flag is put in line with the dimension

slot together log cabins Placed as one half in an open-ended size dimension A few common Feature of Size Datum Features are bores, cylinders, slots, or tabs