That still doesn't look very usable, as someone who designed a board, I don't know what the milling and drilling diameters are for. I know about track size, tra

That still doesn't look very usable, as someone who designed a board, I don't know what the milling and drilling diameters are for. I know about track size, track clearance, minimum via diameter, etc. The way they have it, I need to know about how PCBs are fabricated to read it accurately.