UNI 7655-1977
Dual diameter twist drill bit with cylindrical handle for preparing holes for coarse pitch ISO metric thread tapping

Standard No.

UNI 7655-1977

Release Date

1977

Published By

IT-UNI

Status

Withdraw

Latest

UNI 7655-1977

UNI 7655-1977 history

• 1977 UNI 7655-1977 Dual diameter twist drill bit with cylindrical handle for preparing holes for coarse pitch ISO metric thread tapping