Drilling and tapping hubs/discs

[zeroaxe]

I didnt understand the term "Spotface" so I did a Google and found this. As I understand another word for it is "Countersink", correct? From what I can see on the net regarding spotface tools, is that instead of using a normal drill and do the countersink, one uses a 'flat' drill (like in the pic below) to do a nice and flat 'countersink', correct?


Thanks!