The whole truth of the job, before being unclamped from the chuck plate, depends in this case upon the dovetail groove being at a true right angle to the axial line of the lathe cone spindle, it being of no consequence whether the face plate stands true or not.
"Modern Machine-Shop Practice, Volumes I and II"
Joshua Rose
First Lady, you come up to the table and get Trigger unclamped."
"Legacy"
James H Schmitz