Carbide tipped counterbores. Design and dimensions
STANDARD published on 1.7.1972
Designation standards: GOST 3231-71
Publication date standards: 1.7.1972
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Russian technical standard
Category: Technical standards GOST
Implemented changes and corrections:
Amd. 8.80
Amd. 8.86