That's it. really. Why? A large-diameter one with a small drill point could make all the sizes. as far as I am aware the drilled hole is irrelevant. I suppose it might have mattered as a reservoir for the white lead in the days of solid centres.
-- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
