| 摘要 |
PROBLEM TO BE SOLVED: To provide a club head that can increase spin performance.SOLUTION: The golf club head includes: a face part 10; multiple score lines 20 formed in the face part 10; and multiple grooves 30 formed in the face part 10, where each of the multiple grooves 30 extends in a toe-heel direction and each of the multiple grooves 30 periodically varies in the depth thereof.SELECTED DRAWING: Figure 1 |
