Sink. To prepare a die from a hub, as a final step of hubbing. A peculiarity of the English language exists for this term: "raise" and "sink" in the connotation of hubbing both mean the same! This sink is intended and desirable. If a die sinks (after long use and wear) it is deteriorating; this is unintended and undesirable. See sunken die.
excerpted with permission from
For Artists, Makers, Collectors and Curators
COMPILED AND WRITTEN BY D. WAYNE JOHNSON
Roger W. Burdette, Editor