0.583 = 14.8082mm so it looks like who ever programmed the machine misread the drawing saw 15mm which is the rad round the out side instead of cutting a 11mm hole
Moral of the storey always pull a few samples from the batch before you walk out of the door, the place I get all mine done has been caught out by RU7 & 8 before, if it's not as per the drawing I don't pay for it.