| 摘要 |
An improved golf club is disclosed, in which a desired weight for the club's head is precisely controlled by installing into a hosel cavity a selected hosel plug from a group of such plugs having identical sizes but a range of weights. After the selected hosel plug has been installed, the shaft is inserted into an upper portion of the hosel cavity, above the hosel plug. The plug is configured to have little effect on important club head parameters such as coefficient of restitution and center of gravity, and it also is configured to remain in its installed position even if the club's shaft is removed and replaced. The invention is applicable to golf clubs of all kinds, including metal woods, irons and putters.
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