| 摘要 |
The present invention relates to a golf club having a hollow head and to a golf club head die to cast such a hollow golf club head. The golf club head of this invention has a hollowly formed head and a golf club shaft which is inserted through this hollow part. Further, in the golf club head die of the present invention, a shaft hole pin is arranged through the insert core, and its one end is inserted into the positioning hole formed in one of divided die members. Still further, in the golf club head die of this invention, after casting of the head body, the insert core piece at the center is removed through the opening in the sole and the other insert core pieces around it are moved to the position of this removed insert core piece to be removed through the opening.
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