I tried to post a small word document showing the dialog boxes
etc. I guess I don't understand how to do that.
Drill tool needs a point already on the component face.
Perhaps set by Tape Measure tool.
The Dado tool "from/to" edges are not the ends. They define
how you want to place the dado. The from edge and to edge define
the plane and how your dimensions to the dado are placed. Hence a dimension
of 1 inch is from the from edge in the direction of the to edge. What
you are dimensioning to is one of three possibilities To (the nearest edge)
Center (the center) or Over (to the furthest edge). That is kind of
an old convention in carpentry.
Thanks Joel