Status : Published (Under review)

This standard was last reviewed and confirmed in 2022. Therefore this version remains current.
Format Language
PDF
Paper
  • CHF42
Convert Swiss francs (CHF) to your currency

Abstract

Specifies the basic dimensions for equipment. Gives a list of components; tabulates together with figures: shank adapters for central flushing, hexagon type and lug-shank type; extension rods; coupling sleeves; four-wing bits; reverse-buttress threads; hollow hexagonal bars for extension rods; hexagonal drill-steels.

Standard first page

Read sample 

Preview this standard in our Online Browsing Platform (OBP)

General information

  • Status
     : Published
    Publication date
     : 1974-08
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 6
  • Technical Committee :
    ISO/TC 82
    ICS :
    73.100.30 
  • RSS updates

Life cycle

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

  2. Store
  3. Standards catalogue
  4. TC
  5. ISO/TC 82
  6. ISO 1721:1974