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ISO 2306:1972
Drills for use prior to tapping screw threads
STANDARD published on 1.7.1972
The information about the standard:
Designation standards: ISO 2306:1972
Publication date standards: 1.7.1972
SKU: NS-429584
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Annotation of standard text ISO 2306:1972 :
Description / Abstract: Specifies the sizes of these drills for ISO metric threads (tables 1 and 2). ISO inch threads (tables 3 and 4) and pipe threads (tables 5 and 6). Applies to screw threads of normal length of engagement, the drill diamter being approximately equal to the nominal diameter of the thread minus the pitch. The sizes (except for those sizes indicated by an asterisk) have been selected from ISO 235 and are to be used in the future.
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