This International Standard gives the terminology of the designs of hardmetal heading dies (see table 1) and heading and extruding dies (see table 2) as well as the symbols and corresponding terms for the principal dimensions used for the description of these tools (see table 3). NOTE — In addition to the terms given in two of the three official ISO languages (English and French), this International Standard gives the equivalent terms in German, Italian, Swedish and Dutch; these have been included at the request of ISO Technical Committee 29, and are published under the responsibility of the member bodies for Germany (DIN), Italy (UNI), Sweden (SIS) and the Netherlands (NNI). However, only the terms given in the official languages can be considered as ISO terms.