| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily swing and hit a high ball and achieve an easy control of direction of a hit ball for all the iron clubs for an iron golf club set. SOLUTION: On a golf club set including plural golf clubs #2 to PW of which each golf club has a steel shaft 3, the steel shaft 3 of a short side golf club is heavier than that of a long side and there is provided a step forming area R of which an outer diameter of the shaft is changed in plural steps S at a position which is apart from the same distance from a grip end of each golf club and a specific area Q which is set at a position which is apart from a sole edge of the head 1 and near a grip to the full length of the shaft, in addition, a step space P in the specific area Q is narrower than that of the outside of the specific area.</p> |
