Punch-holder PROMECAM mod. 40.05-100, manufactured in steel C-50 rectified.
Press brake punch for machines type; ACL - Acurpress - AM Machinery - Adira - Amada - Astrida - Axial - Baykal - Blecken - Boschert - Boutillon - Casanovas - Colgar - Colly - Dener - Durma - Ermaksan - Farina - Feysama - Ferry - Gasparini - Güifil - Haco - Hidrogarne - Korpleg - - Lami-Nova - Llavia Cumsa - Mebusa - Mecos - Megobal - Montgri (Combi) - Omag - Prada Nargesa - Prima Power - Promecam - Rico - Rocipleg - Safan - Salvagnini - Schiavi, etc
See it on YOUTUBE