This standard specifies the dimensions of indexable carbide inserts with rounded corners and countersunk holes. This standard applies to carbide indexable inserts with rounded corners and countersunk holes that are mounted on cutting and drilling tools by means of countersunk screws or other means (such as pin fixation).
ISO 6987:1998 history
2012ISO 6987:2012 Indexable hard material inserts with rounded corners, with partly cylindrical fixing hole - Dimensions
1998ISO 6987:1998 Indexable hard material inserts with rounded corners, with partly cylindrical fixing hole - Dimensions