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Hand- and machine-operated circular screwing dies and hand-operated die stocks
This International Standard specifies the general dimensions of hand-operated and machine-operated screwing dies. These dimensions, established as a function of the thread diameter and pitch, are the following:
It also gives the interchangeability dimensions of hand-operated die stocks.
This International Standard is applicable to screwing dies intended for the manufacture of the following threads:
The dimensional characteristics of circular screwing dies, as a function of thread diameters and pitches, are given in annex A.
The general dimensions of screwing dies for threads which are not dealt with in this International Standard, and therefore are not recommended, are given for guidance only in annex B. Annex B is applicable to screwing dies for inch threads of the following types:
All screwing dies are available in two classes, namely:
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