| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a golf club head in which score lines are speedily formed, and a method of manufacturing the same. <P>SOLUTION: A golf club blank 10R which has neither score lines 12 nor recessed holes 13 is manufactured by casting or forging, and the recessed holes 13 are formed at a face surface 11 of the golf club head blank 10R. An end mill 7 for forming the score line by cutting is inserted into the recessed hole 13, and then the end mill 7 is moved toward a heel, thereby forming each of the score lines 12 by cutting. <P>COPYRIGHT: (C)2013,JPO&INPIT |
