BS 328-2(1972) : 1972现行
DRILLS AND REAMERS - COMBINED DRILLS AND COUNTERSINKS (CENTRE DRILLS)
出版：British Standards Institution
专家解读视频
Describes designations and dimensions for centre drills, combined and countersink without protecting chamfers. Covers manufacturing requirements for combined drills and countersinks, dimensions of combined drills and countersinks, designation, combined drills and countersinks for centre holes without protecting chamfer, combined drills and countersinks for centre holes with protecting chamfer and combined drills and countersinks for centre holes with radius form.
ISO 2541 : 2016 - Identical
ISO 866 : 2016 - Identical
NZS/BS 328.2:1972 - Identical
ISO 2540 : 2016 - Identical
NZS/BS 328.2:1972 - Identical
