Long-life die for the manufacturing of elongate bodies

A die (1) for mounting in an associated die holder for the production of heads on elongate bodies (40), the die comprising:

• a body (2) with a top surface (3) provided with a through-going groove (4) for receiving and holding an elongate body longitudinally in said groove,
• a recess (5) at one end of the groove suitable for forming the head on the elongate body,
• a side surface (6) comprising a first portion with a curved shaped arranged for press fit by contact with a curved portion of an inner surface (29) of a bore or hole (30) in the associated die holder, and
• a stop surface (7) for engaging with a stop part (28) in the hole or bore of the associated die holder, so as to determine a height of the die in relation to the associated die holder,
• wherein the side surface further comprises a second portion (9) shaped to engage with a corresponding portion of the inner surface of the bore or hole in the associated die holder, in order to guide angular orientation of the groove relative to the associated die holder, wherein the first portion of the side surface has a cylindrical shape or a conical shape, wherein the second portion of the side surface comprises a plane portion configured to engage with a corresponding plane portion of the inner surface of the bore or hole in the associated die holder, and wherein said plane portion forms an angle of 0.5-2.0° with a central axis of the die.