Ed, are you thinking of making new ones and cutting the same radius as the quill instead of the flat? Ive seen old drill presses that started having small contact points like those, in time the quill became pretty dug up.
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.