
Parallel shank twist drills with 12° helix. Medium series. Basic dimensions
STANDARD published on 1.2.1983
Designation standards: STN 221123
Classification mark: 221123
Catalog number: 54413
Note: WITHDRAWN
Publication date standards: 1.2.1983
Approximate weight : 12 g (0.03 lbs)
Country: Slovak technical standard
Category: Technical standards STN