Việt
chày đột
Anh
piercing punch
pre-percing punch
Đức
Vorlocher
Pháp
poinçon d'ébauche
poinçon de perçage
piercing punch,pre-percing punch /INDUSTRY-METAL,ENG-MECHANICAL/
[DE] Vorlocher
[EN] piercing punch; pre-percing punch
[FR] poinçon d' ébauche; poinçon de perçage