UNI 7657-1977
Twist drill bit with synthetic metal carbide plate cylindrical handle

Standard No.

UNI 7657-1977

Release Date

1977

Published By

IT-UNI

Status

Withdraw

Latest

UNI 7657-1977

UNI 7657-1977 history

• 1977 UNI 7657-1977 Twist drill bit with synthetic metal carbide plate cylindrical handle