Drills and reamers. Combined drills and countersinks (centre drills).
STANDARD published on 28.7.1972
Designation standards: BS 328-2:1972
Publication date standards: 28.7.1972
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: British technical standard
Category: Technical standards BS
Designations and dimensions of combined drills and countersinks (centre drills) for centre holes, without protecting chamfers, with protecting chamfers or of radius form. Status: Under Review