Solid counterbores. Types and basic dimensions
STANDARD published on 1.7.1972
Designation standards: GOST 12489-71
Publication date standards: 1.7.1972
The number of pages: 26
Approximate weight : 78 g (0.17 lbs)
Country: Russian technical standard
Category: Technical standards GOST
Implemented changes and corrections:
Amd. 7.73
Amd. 9.80
Amd. 3.84
Amd. 2.92