Countersinks and counterbores. Parallel shank countersinks for 60°, 90° and 120° angles. Basic dimensions
STANDARD published on 1.8.1978
Designation standards: STN 221627
Classification mark: 221627
Catalog number: 54491
Publication date standards: 1.8.1978
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: Slovak technical standard
Category: Technical standards STN