Reference number
ISO 3439:1975
ISO 3439:1975
Subland twist drills with parallel shanks for holes prior to tapping screw threads
Edition 1
1975-09
Retirada
ISO 3439:1975
8758
Retirada (Edición 1, 1975)

Resumen

Lays down only metric dimensions, which are the only recommended dimensions in the future for these subland twist drills. The drills have been designed to produce holes prior to tapping metric threads over selected range of M 3 to M 14. Unless otherwise stated, these drills will be rigth-hand cutting. Supplements ISO 2306.

Informaciones generales

  •  : Retirada
     : 1975-09
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 1
  • ISO/TC 29
    25.100.30 
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