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Glossary of watchmaking

Die

Poinçon | タガネ | 模子

A tempered steel tool with sharp edges for cutting and shaping various parts.

A stamping press uses a die set. Watchmakers use small cylindrical dies in tempered steel whose end may or may not be hollow for various tasks, such as riveting, extracting pins and tightening holes. This type of die is held in a bracket and struck with a hammer. Dies are also used to mark numerals, letters and signs onto a surface.