Taper shank twist drills with reinforced shank. Basic dimensions
STANDARD published on 3.8.1977
Designation standards: ČSN 221144
Classification mark: 221144
Catalog number: 1212
Publication date standards: 3.8.1977
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: Czech technical standard
Category: Technical standards ČSN