Taper
Taper. A bevel or angle on the sides of relief and lettering on all models, tooling and dies. Such a bevel must be at least 5° for a die to strike and withdraw, or for a cast to be released from the mold. However, somewhat higher degree of draft is preferred for most coining and striking work, as 15°. See bevel, draft
excerpted with permission from
An Encyclopedia of Coin and Medal Technology
For Artists, Makers, Collectors and Curators
COMPILED AND WRITTEN BY D. WAYNE JOHNSON
Roger W. Burdette, Editor