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ISO 3439:1975

ISO 3439:1975

Subland twist drills with parallel shanks for holes prior to tapping screw threads

Forets étagés à queue cylindrique pour avant-trous de taraudage

Fecha Anulación:
1975-09-01 / Withdrawn
ICS:

25.100.30 - Drills, countersinks, reamers.

Committee:
ISO/TC 29 - Small tools
Relación con otras normas ISO:

Es anulada por: ISO 3439:2003

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