Die for drawing metal wire rod, and method for manufacturing same

A metal wire rod drawing die with a die hole formed therein for inserting a metal wire rod, the die being characterized in that the die hole comprises an approach section tapered in a direction in which the metal wire rod is inserted and a bearing section having a constant inner diameter located at a subsequent stage to the approach section;

• and where Ra1 represents a surface roughness of an inner surface of the die hole from the bearing section to the approach section corresponding to an area reduction rate of 30% in an axial direction of the die hole, Ra2 represents a surface roughness of the inner surface of the die hole from the bearing section to the approach section corresponding to the area reduction rate of 30% in a direction orthogonal to the axial direction of the die hole, and Ra3 represents a surface roughness of an inner surface of the bearing section of the die hole in the axial direction of the die hole, the Ra1, the Ra2, and the Ra3 satisfy a relationship represented by the following formula:
• 0. 14 μm>Ra2>Ra1>Ra3.